Home / 72,239,917.60-108,536,823.60-54,324,013.60

Finding the Fourth Proportional to 72,239,917.60, 108,536,823.60 and 54,324,013.60

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Solution

The fourth proportional to 72,239,917.60, 108,536,823.60 and 54,324,013.60 is: 81,619,083.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,239,917.60 : 108,536,823.60 = 54,324,013.60 : x
  2. Step 2: Convert to fraction form
    72,239,917.60/108,536,823.60 = 54,324,013.60/x
  3. Step 3: Cross multiply
    72,239,917.60x = 108,536,823.60 × 54,324,013.60
  4. Step 4: Simplify right side
    72,239,917.60x = 5,896,155,881,347,201
  5. Step 5: Solve for x
    x = 5,896,155,881,347,201/72,239,917.60
  6. Step 6: Final answer
    x = 81,619,083.70

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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.