Home / 39,858,778.20-59,788,167.30-30,221,981.40

Finding the Fourth Proportional to 39,858,778.20, 59,788,167.30 and 30,221,981.40

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Solution

The fourth proportional to 39,858,778.20, 59,788,167.30 and 30,221,981.40 is: 45,332,972.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,858,778.20 : 59,788,167.30 = 30,221,981.40 : x
  2. Step 2: Convert to fraction form
    39,858,778.20/59,788,167.30 = 30,221,981.40/x
  3. Step 3: Cross multiply
    39,858,778.20x = 59,788,167.30 × 30,221,981.40
  4. Step 4: Simplify right side
    39,858,778.20x = 1,806,916,880,080,688
  5. Step 5: Solve for x
    x = 1,806,916,880,080,688/39,858,778.20
  6. Step 6: Final answer
    x = 45,332,972.10

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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.