Home / 85,042,388.90-117,394,773.08-57,181,248.48

Finding the Fourth Proportional to 85,042,388.90, 117,394,773.08 and 57,181,248.48

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Solution

The fourth proportional to 85,042,388.90, 117,394,773.08 and 57,181,248.48 is: 78,934,514.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,042,388.90 : 117,394,773.08 = 57,181,248.48 : x
  2. Step 2: Convert to fraction form
    85,042,388.90/117,394,773.08 = 57,181,248.48/x
  3. Step 3: Cross multiply
    85,042,388.90x = 117,394,773.08 × 57,181,248.48
  4. Step 4: Simplify right side
    85,042,388.90x = 6,712,779,689,454,788
  5. Step 5: Solve for x
    x = 6,712,779,689,454,788/85,042,388.90
  6. Step 6: Final answer
    x = 78,934,514.62

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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.