Home / 83,001,160.40-124,501,740.60-81,867,419.60

Finding the Fourth Proportional to 83,001,160.40, 124,501,740.60 and 81,867,419.60

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Solution

The fourth proportional to 83,001,160.40, 124,501,740.60 and 81,867,419.60 is: 122,801,129.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,001,160.40 : 124,501,740.60 = 81,867,419.60 : x
  2. Step 2: Convert to fraction form
    83,001,160.40/124,501,740.60 = 81,867,419.60/x
  3. Step 3: Cross multiply
    83,001,160.40x = 124,501,740.60 × 81,867,419.60
  4. Step 4: Simplify right side
    83,001,160.40x = 10,192,636,238,630,554
  5. Step 5: Solve for x
    x = 10,192,636,238,630,554/83,001,160.40
  6. Step 6: Final answer
    x = 122,801,129.40

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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.