Home / 72,669,273.60-108,911,289.60-38,606,937.60

Finding the Fourth Proportional to 72,669,273.60, 108,911,289.60 and 38,606,937.60

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Solution

The fourth proportional to 72,669,273.60, 108,911,289.60 and 38,606,937.60 is: 57,861,199.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,669,273.60 : 108,911,289.60 = 38,606,937.60 : x
  2. Step 2: Convert to fraction form
    72,669,273.60/108,911,289.60 = 38,606,937.60/x
  3. Step 3: Cross multiply
    72,669,273.60x = 108,911,289.60 × 38,606,937.60
  4. Step 4: Simplify right side
    72,669,273.60x = 4,204,731,361,522,729
  5. Step 5: Solve for x
    x = 4,204,731,361,522,729/72,669,273.60
  6. Step 6: Final answer
    x = 57,861,199.83

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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.