Home / 282,957,687.76-424,436,505.60-78,485,771.92

Finding the Fourth Proportional to 282,957,687.76, 424,436,505.60 and 78,485,771.92

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Solution

The fourth proportional to 282,957,687.76, 424,436,505.60 and 78,485,771.92 is: 117,728,650.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,957,687.76 : 424,436,505.60 = 78,485,771.92 : x
  2. Step 2: Convert to fraction form
    282,957,687.76/424,436,505.60 = 78,485,771.92/x
  3. Step 3: Cross multiply
    282,957,687.76x = 424,436,505.60 × 78,485,771.92
  4. Step 4: Simplify right side
    282,957,687.76x = 33,312,226,773,043,404
  5. Step 5: Solve for x
    x = 33,312,226,773,043,404/282,957,687.76
  6. Step 6: Final answer
    x = 117,728,650.66

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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.