Home / 99,391,032.66-148,892,597.28-77,428,576.54

Finding the Fourth Proportional to 99,391,032.66, 148,892,597.28 and 77,428,576.54

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Solution

The fourth proportional to 99,391,032.66, 148,892,597.28 and 77,428,576.54 is: 115,991,770.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,391,032.66 : 148,892,597.28 = 77,428,576.54 : x
  2. Step 2: Convert to fraction form
    99,391,032.66/148,892,597.28 = 77,428,576.54/x
  3. Step 3: Cross multiply
    99,391,032.66x = 148,892,597.28 × 77,428,576.54
  4. Step 4: Simplify right side
    99,391,032.66x = 11,528,541,864,733,876
  5. Step 5: Solve for x
    x = 11,528,541,864,733,876/99,391,032.66
  6. Step 6: Final answer
    x = 115,991,770.65

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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.