Home / 72,456,524.64-99,990,654.48-39,417,495.12

Finding the Fourth Proportional to 72,456,524.64, 99,990,654.48 and 39,417,495.12

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Solution

The fourth proportional to 72,456,524.64, 99,990,654.48 and 39,417,495.12 is: 54,396,497.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,456,524.64 : 99,990,654.48 = 39,417,495.12 : x
  2. Step 2: Convert to fraction form
    72,456,524.64/99,990,654.48 = 39,417,495.12/x
  3. Step 3: Cross multiply
    72,456,524.64x = 99,990,654.48 × 39,417,495.12
  4. Step 4: Simplify right side
    72,456,524.64x = 3,941,381,135,011,006
  5. Step 5: Solve for x
    x = 3,941,381,135,011,006/72,456,524.64
  6. Step 6: Final answer
    x = 54,396,497.14

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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.