Home / 130,902,857.15-180,644,490.14-75,149,611.47

Finding the Fourth Proportional to 130,902,857.15, 180,644,490.14 and 75,149,611.47

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Solution

The fourth proportional to 130,902,857.15, 180,644,490.14 and 75,149,611.47 is: 103,705,629.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,902,857.15 : 180,644,490.14 = 75,149,611.47 : x
  2. Step 2: Convert to fraction form
    130,902,857.15/180,644,490.14 = 75,149,611.47/x
  3. Step 3: Cross multiply
    130,902,857.15x = 180,644,490.14 × 75,149,611.47
  4. Step 4: Simplify right side
    130,902,857.15x = 13,575,363,247,841,496
  5. Step 5: Solve for x
    x = 13,575,363,247,841,496/130,902,857.15
  6. Step 6: Final answer
    x = 103,705,629.84

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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.