Home / 205,920,433.72-284,175,747.90-121,153,469.68

Finding the Fourth Proportional to 205,920,433.72, 284,175,747.90 and 121,153,469.68

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Solution

The fourth proportional to 205,920,433.72, 284,175,747.90 and 121,153,469.68 is: 167,195,053.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,920,433.72 : 284,175,747.90 = 121,153,469.68 : x
  2. Step 2: Convert to fraction form
    205,920,433.72/284,175,747.90 = 121,153,469.68/x
  3. Step 3: Cross multiply
    205,920,433.72x = 284,175,747.90 × 121,153,469.68
  4. Step 4: Simplify right side
    205,920,433.72x = 34,428,877,856,993,972
  5. Step 5: Solve for x
    x = 34,428,877,856,993,972/205,920,433.72
  6. Step 6: Final answer
    x = 167,195,053.13

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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.