Home / 1,344,391,100.96-1,855,391,977.24-815,713,594.16

Finding the Fourth Proportional to 1,344,391,100.96, 1,855,391,977.24 and 815,713,594.16

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Solution

The fourth proportional to 1,344,391,100.96, 1,855,391,977.24 and 815,713,594.16 is: 1,125,765,007.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344,391,100.96 : 1,855,391,977.24 = 815,713,594.16 : x
  2. Step 2: Convert to fraction form
    1,344,391,100.96/1,855,391,977.24 = 815,713,594.16/x
  3. Step 3: Cross multiply
    1,344,391,100.96x = 1,855,391,977.24 × 815,713,594.16
  4. Step 4: Simplify right side
    1,344,391,100.96x = 1,513,468,458,330,069,248
  5. Step 5: Solve for x
    x = 1,513,468,458,330,069,248/1,344,391,100.96
  6. Step 6: Final answer
    x = 1,125,765,007.85

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Double scale
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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.