Home / 72,037,767.61-99,412,005.07-38,998,007.74

Finding the Fourth Proportional to 72,037,767.61, 99,412,005.07 and 38,998,007.74

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Solution

The fourth proportional to 72,037,767.61, 99,412,005.07 and 38,998,007.74 is: 53,817,188.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,037,767.61 : 99,412,005.07 = 38,998,007.74 : x
  2. Step 2: Convert to fraction form
    72,037,767.61/99,412,005.07 = 38,998,007.74/x
  3. Step 3: Cross multiply
    72,037,767.61x = 99,412,005.07 × 38,998,007.74
  4. Step 4: Simplify right side
    72,037,767.61x = 3,876,870,143,168,779
  5. Step 5: Solve for x
    x = 3,876,870,143,168,779/72,037,767.61
  6. Step 6: Final answer
    x = 53,817,188.84

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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.