Home / 72,610,776.80-108,916,165.20-67,508,943.20

Finding the Fourth Proportional to 72,610,776.80, 108,916,165.20 and 67,508,943.20

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Solution

The fourth proportional to 72,610,776.80, 108,916,165.20 and 67,508,943.20 is: 101,263,414.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,610,776.80 : 108,916,165.20 = 67,508,943.20 : x
  2. Step 2: Convert to fraction form
    72,610,776.80/108,916,165.20 = 67,508,943.20/x
  3. Step 3: Cross multiply
    72,610,776.80x = 108,916,165.20 × 67,508,943.20
  4. Step 4: Simplify right side
    72,610,776.80x = 7,352,815,210,048,617
  5. Step 5: Solve for x
    x = 7,352,815,210,048,617/72,610,776.80
  6. Step 6: Final answer
    x = 101,263,414.80

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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.