Home / 1,248,650,018.92-1,723,242,842.16-691,907,703.40

Finding the Fourth Proportional to 1,248,650,018.92, 1,723,242,842.16 and 691,907,703.40

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Solution

The fourth proportional to 1,248,650,018.92, 1,723,242,842.16 and 691,907,703.40 is: 954,891,265.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,650,018.92 : 1,723,242,842.16 = 691,907,703.40 : x
  2. Step 2: Convert to fraction form
    1,248,650,018.92/1,723,242,842.16 = 691,907,703.40/x
  3. Step 3: Cross multiply
    1,248,650,018.92x = 1,723,242,842.16 × 691,907,703.40
  4. Step 4: Simplify right side
    1,248,650,018.92x = 1,192,324,997,319,414,272
  5. Step 5: Solve for x
    x = 1,192,324,997,319,414,272/1,248,650,018.92
  6. Step 6: Final answer
    x = 954,891,265.97

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Half scale
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Double scale
Find fourth proportional to 1,248,650,019.92, 1,723,242,843.54 and 691,907,704.40
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.