Home / 73,102,715.20-109,654,072.80-72,598,830.40

Finding the Fourth Proportional to 73,102,715.20, 109,654,072.80 and 72,598,830.40

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Solution

The fourth proportional to 73,102,715.20, 109,654,072.80 and 72,598,830.40 is: 108,898,245.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,102,715.20 : 109,654,072.80 = 72,598,830.40 : x
  2. Step 2: Convert to fraction form
    73,102,715.20/109,654,072.80 = 72,598,830.40/x
  3. Step 3: Cross multiply
    73,102,715.20x = 109,654,072.80 × 72,598,830.40
  4. Step 4: Simplify right side
    73,102,715.20x = 7,960,757,433,876,454
  5. Step 5: Solve for x
    x = 7,960,757,433,876,454/73,102,715.20
  6. Step 6: Final answer
    x = 108,898,245.60

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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.