Home / 71,218,196.08-98,278,999.09-39,429,781.93

Finding the Fourth Proportional to 71,218,196.08, 98,278,999.09 and 39,429,781.93

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Solution

The fourth proportional to 71,218,196.08, 98,278,999.09 and 39,429,781.93 is: 54,411,930.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,218,196.08 : 98,278,999.09 = 39,429,781.93 : x
  2. Step 2: Convert to fraction form
    71,218,196.08/98,278,999.09 = 39,429,781.93/x
  3. Step 3: Cross multiply
    71,218,196.08x = 98,278,999.09 × 39,429,781.93
  4. Step 4: Simplify right side
    71,218,196.08x = 3,875,119,502,441,643
  5. Step 5: Solve for x
    x = 3,875,119,502,441,643/71,218,196.08
  6. Step 6: Final answer
    x = 54,411,930.04

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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.