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Finding the Fourth Proportional to 99,692,148.60, 149,692,187.70 and 54,342,516.60

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Solution

The fourth proportional to 99,692,148.60, 149,692,187.70 and 54,342,516.60 is: 81,597,701.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,692,148.60 : 149,692,187.70 = 54,342,516.60 : x
  2. Step 2: Convert to fraction form
    99,692,148.60/149,692,187.70 = 54,342,516.60/x
  3. Step 3: Cross multiply
    99,692,148.60x = 149,692,187.70 × 54,342,516.60
  4. Step 4: Simplify right side
    99,692,148.60x = 8,134,650,194,977,565
  5. Step 5: Solve for x
    x = 8,134,650,194,977,565/99,692,148.60
  6. Step 6: Final answer
    x = 81,597,701.62

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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.