Home / 72,146,723.38-99,563,753.71-39,108,069.77

Finding the Fourth Proportional to 72,146,723.38, 99,563,753.71 and 39,108,069.77

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Solution

The fourth proportional to 72,146,723.38, 99,563,753.71 and 39,108,069.77 is: 53,969,827.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,146,723.38 : 99,563,753.71 = 39,108,069.77 : x
  2. Step 2: Convert to fraction form
    72,146,723.38/99,563,753.71 = 39,108,069.77/x
  3. Step 3: Cross multiply
    72,146,723.38x = 99,563,753.71 × 39,108,069.77
  4. Step 4: Simplify right side
    72,146,723.38x = 3,893,746,226,204,843
  5. Step 5: Solve for x
    x = 3,893,746,226,204,843/72,146,723.38
  6. Step 6: Final answer
    x = 53,969,827.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.