Home / 130,902,858.15-180,644,491.51-75,149,612.47

Finding the Fourth Proportional to 130,902,858.15, 180,644,491.51 and 75,149,612.47

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Solution

The fourth proportional to 130,902,858.15, 180,644,491.51 and 75,149,612.47 is: 103,705,631.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,902,858.15 : 180,644,491.51 = 75,149,612.47 : x
  2. Step 2: Convert to fraction form
    130,902,858.15/180,644,491.51 = 75,149,612.47/x
  3. Step 3: Cross multiply
    130,902,858.15x = 180,644,491.51 × 75,149,612.47
  4. Step 4: Simplify right side
    130,902,858.15x = 13,575,363,531,816,704
  5. Step 5: Solve for x
    x = 13,575,363,531,816,704/130,902,858.15
  6. Step 6: Final answer
    x = 103,705,631.21

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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.