Home / 84,172,815.60-126,189,239.40-35,687,900.40

Finding the Fourth Proportional to 84,172,815.60, 126,189,239.40 and 35,687,900.40

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Solution

The fourth proportional to 84,172,815.60, 126,189,239.40 and 35,687,900.40 is: 53,502,178.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,172,815.60 : 126,189,239.40 = 35,687,900.40 : x
  2. Step 2: Convert to fraction form
    84,172,815.60/126,189,239.40 = 35,687,900.40/x
  3. Step 3: Cross multiply
    84,172,815.60x = 126,189,239.40 × 35,687,900.40
  4. Step 4: Simplify right side
    84,172,815.60x = 4,503,429,007,258,956
  5. Step 5: Solve for x
    x = 4,503,429,007,258,956/84,172,815.60
  6. Step 6: Final answer
    x = 53,502,178.53

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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.