Home / 112,623,996.18-155,421,114.78-61,115,772.18

Finding the Fourth Proportional to 112,623,996.18, 155,421,114.78 and 61,115,772.18

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Solution

The fourth proportional to 112,623,996.18, 155,421,114.78 and 61,115,772.18 is: 84,339,765.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,623,996.18 : 155,421,114.78 = 61,115,772.18 : x
  2. Step 2: Convert to fraction form
    112,623,996.18/155,421,114.78 = 61,115,772.18/x
  3. Step 3: Cross multiply
    112,623,996.18x = 155,421,114.78 × 61,115,772.18
  4. Step 4: Simplify right side
    112,623,996.18x = 9,498,681,442,856,110
  5. Step 5: Solve for x
    x = 9,498,681,442,856,110/112,623,996.18
  6. Step 6: Final answer
    x = 84,339,765.64

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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.