Home / 81,729,080.08-122,623,513.72-38,030,679.60

Finding the Fourth Proportional to 81,729,080.08, 122,623,513.72 and 38,030,679.60

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Solution

The fourth proportional to 81,729,080.08, 122,623,513.72 and 38,030,679.60 is: 57,059,929.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,729,080.08 : 122,623,513.72 = 38,030,679.60 : x
  2. Step 2: Convert to fraction form
    81,729,080.08/122,623,513.72 = 38,030,679.60/x
  3. Step 3: Cross multiply
    81,729,080.08x = 122,623,513.72 × 38,030,679.60
  4. Step 4: Simplify right side
    81,729,080.08x = 4,663,455,561,711,524
  5. Step 5: Solve for x
    x = 4,663,455,561,711,524/81,729,080.08
  6. Step 6: Final answer
    x = 57,059,929.67

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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.