Home / 420,050,123.80-628,563,531.30-284,001,227.80

Finding the Fourth Proportional to 420,050,123.80, 628,563,531.30 and 284,001,227.80

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Solution

The fourth proportional to 420,050,123.80, 628,563,531.30 and 284,001,227.80 is: 424,979,792.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,050,123.80 : 628,563,531.30 = 284,001,227.80 : x
  2. Step 2: Convert to fraction form
    420,050,123.80/628,563,531.30 = 284,001,227.80/x
  3. Step 3: Cross multiply
    420,050,123.80x = 628,563,531.30 × 284,001,227.80
  4. Step 4: Simplify right side
    420,050,123.80x = 178,512,814,639,503,712
  5. Step 5: Solve for x
    x = 178,512,814,639,503,712/420,050,123.80
  6. Step 6: Final answer
    x = 424,979,792.95

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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.