Home / 80,902,078.60-121,353,117.90-53,692,299.40

Finding the Fourth Proportional to 80,902,078.60, 121,353,117.90 and 53,692,299.40

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Solution

The fourth proportional to 80,902,078.60, 121,353,117.90 and 53,692,299.40 is: 80,538,449.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,902,078.60 : 121,353,117.90 = 53,692,299.40 : x
  2. Step 2: Convert to fraction form
    80,902,078.60/121,353,117.90 = 53,692,299.40/x
  3. Step 3: Cross multiply
    80,902,078.60x = 121,353,117.90 × 53,692,299.40
  4. Step 4: Simplify right side
    80,902,078.60x = 6,515,727,939,410,299
  5. Step 5: Solve for x
    x = 6,515,727,939,410,299/80,902,078.60
  6. Step 6: Final answer
    x = 80,538,449.10

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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.