Home / 278,564,772.70-416,855,135.85-242,568,502.30

Finding the Fourth Proportional to 278,564,772.70, 416,855,135.85 and 242,568,502.30

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Solution

The fourth proportional to 278,564,772.70, 416,855,135.85 and 242,568,502.30 is: 362,988,919.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,564,772.70 : 416,855,135.85 = 242,568,502.30 : x
  2. Step 2: Convert to fraction form
    278,564,772.70/416,855,135.85 = 242,568,502.30/x
  3. Step 3: Cross multiply
    278,564,772.70x = 416,855,135.85 × 242,568,502.30
  4. Step 4: Simplify right side
    278,564,772.70x = 101,115,925,979,197,552
  5. Step 5: Solve for x
    x = 101,115,925,979,197,552/278,564,772.70
  6. Step 6: Final answer
    x = 362,988,919.95

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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.