Home / 220,396,499.28-330,642,578.60-67,038,569.91

Finding the Fourth Proportional to 220,396,499.28, 330,642,578.60 and 67,038,569.91

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Solution

The fourth proportional to 220,396,499.28, 330,642,578.60 and 67,038,569.91 is: 100,572,403.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,396,499.28 : 330,642,578.60 = 67,038,569.91 : x
  2. Step 2: Convert to fraction form
    220,396,499.28/330,642,578.60 = 67,038,569.91/x
  3. Step 3: Cross multiply
    220,396,499.28x = 330,642,578.60 × 67,038,569.91
  4. Step 4: Simplify right side
    220,396,499.28x = 22,165,805,620,866,368
  5. Step 5: Solve for x
    x = 22,165,805,620,866,368/220,396,499.28
  6. Step 6: Final answer
    x = 100,572,403.34

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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.