Home / 429,640,474,049.63-644,350,786,488.80-127,382,398,218.53

Finding the Fourth Proportional to 429,640,474,049.63, 644,350,786,488.80 and 127,382,398,218.53

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Solution

The fourth proportional to 429,640,474,049.63, 644,350,786,488.80 and 127,382,398,218.53 is: 191,041,006,223.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,640,474,049.63 : 644,350,786,488.80 = 127,382,398,218.53 : x
  2. Step 2: Convert to fraction form
    429,640,474,049.63/644,350,786,488.80 = 127,382,398,218.53/x
  3. Step 3: Cross multiply
    429,640,474,049.63x = 644,350,786,488.80 × 127,382,398,218.53
  4. Step 4: Simplify right side
    429,640,474,049.63x = 82,078,948,476,939,327,766,528
  5. Step 5: Solve for x
    x = 82,078,948,476,939,327,766,528/429,640,474,049.63
  6. Step 6: Final answer
    x = 191,041,006,223.86

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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.