Home / 80,902,078.40-121,353,117.60-53,692,299.20

Finding the Fourth Proportional to 80,902,078.40, 121,353,117.60 and 53,692,299.20

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Solution

The fourth proportional to 80,902,078.40, 121,353,117.60 and 53,692,299.20 is: 80,538,448.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,902,078.40 : 121,353,117.60 = 53,692,299.20 : x
  2. Step 2: Convert to fraction form
    80,902,078.40/121,353,117.60 = 53,692,299.20/x
  3. Step 3: Cross multiply
    80,902,078.40x = 121,353,117.60 × 53,692,299.20
  4. Step 4: Simplify right side
    80,902,078.40x = 6,515,727,899,031,986
  5. Step 5: Solve for x
    x = 6,515,727,899,031,986/80,902,078.40
  6. Step 6: Final answer
    x = 80,538,448.80

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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.