Home / 460,387,717.53-690,571,605.45-128,385,868.79

Finding the Fourth Proportional to 460,387,717.53, 690,571,605.45 and 128,385,868.79

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Solution

The fourth proportional to 460,387,717.53, 690,571,605.45 and 128,385,868.79 is: 192,576,022.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,387,717.53 : 690,571,605.45 = 128,385,868.79 : x
  2. Step 2: Convert to fraction form
    460,387,717.53/690,571,605.45 = 128,385,868.79/x
  3. Step 3: Cross multiply
    460,387,717.53x = 690,571,605.45 × 128,385,868.79
  4. Step 4: Simplify right side
    460,387,717.53x = 88,659,635,523,950,496
  5. Step 5: Solve for x
    x = 88,659,635,523,950,496/460,387,717.53
  6. Step 6: Final answer
    x = 192,576,022.66

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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.