Home / 85,530,656.90-118,129,731.82-57,980,755.46

Finding the Fourth Proportional to 85,530,656.90, 118,129,731.82 and 57,980,755.46

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Solution

The fourth proportional to 85,530,656.90, 118,129,731.82 and 57,980,755.46 is: 80,079,486.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,530,656.90 : 118,129,731.82 = 57,980,755.46 : x
  2. Step 2: Convert to fraction form
    85,530,656.90/118,129,731.82 = 57,980,755.46/x
  3. Step 3: Cross multiply
    85,530,656.90x = 118,129,731.82 × 57,980,755.46
  4. Step 4: Simplify right side
    85,530,656.90x = 6,849,251,092,475,200
  5. Step 5: Solve for x
    x = 6,849,251,092,475,200/85,530,656.90
  6. Step 6: Final answer
    x = 80,079,486.60

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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.