Home / 83,239,206.40-124,858,809.60-81,538,595.20

Finding the Fourth Proportional to 83,239,206.40, 124,858,809.60 and 81,538,595.20

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Solution

The fourth proportional to 83,239,206.40, 124,858,809.60 and 81,538,595.20 is: 122,307,892.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,239,206.40 : 124,858,809.60 = 81,538,595.20 : x
  2. Step 2: Convert to fraction form
    83,239,206.40/124,858,809.60 = 81,538,595.20/x
  3. Step 3: Cross multiply
    83,239,206.40x = 124,858,809.60 × 81,538,595.20
  4. Step 4: Simplify right side
    83,239,206.40x = 10,180,811,933,128,274
  5. Step 5: Solve for x
    x = 10,180,811,933,128,274/83,239,206.40
  6. Step 6: Final answer
    x = 122,307,892.80

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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.