Home / 72,307,930.38-99,815,481.09-48,818,288.76

Finding the Fourth Proportional to 72,307,930.38, 99,815,481.09 and 48,818,288.76

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Solution

The fourth proportional to 72,307,930.38, 99,815,481.09 and 48,818,288.76 is: 67,389,855.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,307,930.38 : 99,815,481.09 = 48,818,288.76 : x
  2. Step 2: Convert to fraction form
    72,307,930.38/99,815,481.09 = 48,818,288.76/x
  3. Step 3: Cross multiply
    72,307,930.38x = 99,815,481.09 × 48,818,288.76
  4. Step 4: Simplify right side
    72,307,930.38x = 4,872,820,978,569,940
  5. Step 5: Solve for x
    x = 4,872,820,978,569,940/72,307,930.38
  6. Step 6: Final answer
    x = 67,389,855.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.