Home / 280,961,862.50-387,715,151.24-155,506,578.56

Finding the Fourth Proportional to 280,961,862.50, 387,715,151.24 and 155,506,578.56

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Solution

The fourth proportional to 280,961,862.50, 387,715,151.24 and 155,506,578.56 is: 214,592,315.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,961,862.50 : 387,715,151.24 = 155,506,578.56 : x
  2. Step 2: Convert to fraction form
    280,961,862.50/387,715,151.24 = 155,506,578.56/x
  3. Step 3: Cross multiply
    280,961,862.50x = 387,715,151.24 × 155,506,578.56
  4. Step 4: Simplify right side
    280,961,862.50x = 60,292,256,625,205,344
  5. Step 5: Solve for x
    x = 60,292,256,625,205,344/280,961,862.50
  6. Step 6: Final answer
    x = 214,592,315.44

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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.