Home / 42,209,720.20-63,314,580.30-39,858,257.80

Finding the Fourth Proportional to 42,209,720.20, 63,314,580.30 and 39,858,257.80

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Solution

The fourth proportional to 42,209,720.20, 63,314,580.30 and 39,858,257.80 is: 59,787,386.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,209,720.20 : 63,314,580.30 = 39,858,257.80 : x
  2. Step 2: Convert to fraction form
    42,209,720.20/63,314,580.30 = 39,858,257.80/x
  3. Step 3: Cross multiply
    42,209,720.20x = 63,314,580.30 × 39,858,257.80
  4. Step 4: Simplify right side
    42,209,720.20x = 2,523,608,864,096,201
  5. Step 5: Solve for x
    x = 2,523,608,864,096,201/42,209,720.20
  6. Step 6: Final answer
    x = 59,787,386.70

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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.