Home / 42,465,915.20-63,746,768.10-28,117,008.20

Finding the Fourth Proportional to 42,465,915.20, 63,746,768.10 and 28,117,008.20

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Solution

The fourth proportional to 42,465,915.20, 63,746,768.10 and 28,117,008.20 is: 42,207,224.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,465,915.20 : 63,746,768.10 = 28,117,008.20 : x
  2. Step 2: Convert to fraction form
    42,465,915.20/63,746,768.10 = 28,117,008.20/x
  3. Step 3: Cross multiply
    42,465,915.20x = 63,746,768.10 × 28,117,008.20
  4. Step 4: Simplify right side
    42,465,915.20x = 1,792,368,401,391,198.50
  5. Step 5: Solve for x
    x = 1,792,368,401,391,198.50/42,465,915.20
  6. Step 6: Final answer
    x = 42,207,224.15

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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.