Home / 1,305,710,015.40-1,958,565,023.10-432,446,164.20

Finding the Fourth Proportional to 1,305,710,015.40, 1,958,565,023.10 and 432,446,164.20

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Solution

The fourth proportional to 1,305,710,015.40, 1,958,565,023.10 and 432,446,164.20 is: 648,669,246.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,710,015.40 : 1,958,565,023.10 = 432,446,164.20 : x
  2. Step 2: Convert to fraction form
    1,305,710,015.40/1,958,565,023.10 = 432,446,164.20/x
  3. Step 3: Cross multiply
    1,305,710,015.40x = 1,958,565,023.10 × 432,446,164.20
  4. Step 4: Simplify right side
    1,305,710,015.40x = 846,973,931,575,879,296
  5. Step 5: Solve for x
    x = 846,973,931,575,879,296/1,305,710,015.40
  6. Step 6: Final answer
    x = 648,669,246.30

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.