Home / 84,001,813.60-126,002,720.40-61,043,562.40

Finding the Fourth Proportional to 84,001,813.60, 126,002,720.40 and 61,043,562.40

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Solution

The fourth proportional to 84,001,813.60, 126,002,720.40 and 61,043,562.40 is: 91,565,343.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,001,813.60 : 126,002,720.40 = 61,043,562.40 : x
  2. Step 2: Convert to fraction form
    84,001,813.60/126,002,720.40 = 61,043,562.40/x
  3. Step 3: Cross multiply
    84,001,813.60x = 126,002,720.40 × 61,043,562.40
  4. Step 4: Simplify right side
    84,001,813.60x = 7,691,654,925,307,153
  5. Step 5: Solve for x
    x = 7,691,654,925,307,153/84,001,813.60
  6. Step 6: Final answer
    x = 91,565,343.60

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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.