Home / 42,570,139.80-63,855,209.70-39,285,557.40

Finding the Fourth Proportional to 42,570,139.80, 63,855,209.70 and 39,285,557.40

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Solution

The fourth proportional to 42,570,139.80, 63,855,209.70 and 39,285,557.40 is: 58,928,336.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,570,139.80 : 63,855,209.70 = 39,285,557.40 : x
  2. Step 2: Convert to fraction form
    42,570,139.80/63,855,209.70 = 39,285,557.40/x
  3. Step 3: Cross multiply
    42,570,139.80x = 63,855,209.70 × 39,285,557.40
  4. Step 4: Simplify right side
    42,570,139.80x = 2,508,587,505,958,387
  5. Step 5: Solve for x
    x = 2,508,587,505,958,387/42,570,139.80
  6. Step 6: Final answer
    x = 58,928,336.10

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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.