Home / 78,690,999.40-118,036,499.10-27,566,375.20

Finding the Fourth Proportional to 78,690,999.40, 118,036,499.10 and 27,566,375.20

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Solution

The fourth proportional to 78,690,999.40, 118,036,499.10 and 27,566,375.20 is: 41,349,562.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,690,999.40 : 118,036,499.10 = 27,566,375.20 : x
  2. Step 2: Convert to fraction form
    78,690,999.40/118,036,499.10 = 27,566,375.20/x
  3. Step 3: Cross multiply
    78,690,999.40x = 118,036,499.10 × 27,566,375.20
  4. Step 4: Simplify right side
    78,690,999.40x = 3,253,838,421,485,062
  5. Step 5: Solve for x
    x = 3,253,838,421,485,062/78,690,999.40
  6. Step 6: Final answer
    x = 41,349,562.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.