Home / 278,137,082.40-417,205,623.60-73,696,711.20

Finding the Fourth Proportional to 278,137,082.40, 417,205,623.60 and 73,696,711.20

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Solution

The fourth proportional to 278,137,082.40, 417,205,623.60 and 73,696,711.20 is: 110,545,066.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,137,082.40 : 417,205,623.60 = 73,696,711.20 : x
  2. Step 2: Convert to fraction form
    278,137,082.40/417,205,623.60 = 73,696,711.20/x
  3. Step 3: Cross multiply
    278,137,082.40x = 417,205,623.60 × 73,696,711.20
  4. Step 4: Simplify right side
    278,137,082.40x = 30,746,682,353,465,108
  5. Step 5: Solve for x
    x = 30,746,682,353,465,108/278,137,082.40
  6. Step 6: Final answer
    x = 110,545,066.80

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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.