Home / 426,144,747.60-639,695,418.30-329,528,773.80

Finding the Fourth Proportional to 426,144,747.60, 639,695,418.30 and 329,528,773.80

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Solution

The fourth proportional to 426,144,747.60, 639,695,418.30 and 329,528,773.80 is: 494,663,017.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,144,747.60 : 639,695,418.30 = 329,528,773.80 : x
  2. Step 2: Convert to fraction form
    426,144,747.60/639,695,418.30 = 329,528,773.80/x
  3. Step 3: Cross multiply
    426,144,747.60x = 639,695,418.30 × 329,528,773.80
  4. Step 4: Simplify right side
    426,144,747.60x = 210,798,046,797,877,088
  5. Step 5: Solve for x
    x = 210,798,046,797,877,088/426,144,747.60
  6. Step 6: Final answer
    x = 494,663,017.64

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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.