Home / 129,034,791.12-193,612,721.07-64,343,640.72

Finding the Fourth Proportional to 129,034,791.12, 193,612,721.07 and 64,343,640.72

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Solution

The fourth proportional to 129,034,791.12, 193,612,721.07 and 64,343,640.72 is: 96,545,646.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,034,791.12 : 193,612,721.07 = 64,343,640.72 : x
  2. Step 2: Convert to fraction form
    129,034,791.12/193,612,721.07 = 64,343,640.72/x
  3. Step 3: Cross multiply
    129,034,791.12x = 193,612,721.07 × 64,343,640.72
  4. Step 4: Simplify right side
    129,034,791.12x = 12,457,747,364,316,990
  5. Step 5: Solve for x
    x = 12,457,747,364,316,990/129,034,791.12
  6. Step 6: Final answer
    x = 96,545,646.77

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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.