Home / 84,169,977.60-126,254,966.40-81,650,553.60

Finding the Fourth Proportional to 84,169,977.60, 126,254,966.40 and 81,650,553.60

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Solution

The fourth proportional to 84,169,977.60, 126,254,966.40 and 81,650,553.60 is: 122,475,830.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,169,977.60 : 126,254,966.40 = 81,650,553.60 : x
  2. Step 2: Convert to fraction form
    84,169,977.60/126,254,966.40 = 81,650,553.60/x
  3. Step 3: Cross multiply
    84,169,977.60x = 126,254,966.40 × 81,650,553.60
  4. Step 4: Simplify right side
    84,169,977.60x = 10,308,787,901,309,398
  5. Step 5: Solve for x
    x = 10,308,787,901,309,398/84,169,977.60
  6. Step 6: Final answer
    x = 122,475,830.40

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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.