Home / 306,002,813.70-459,004,220.55-279,218,187.30

Finding the Fourth Proportional to 306,002,813.70, 459,004,220.55 and 279,218,187.30

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Solution

The fourth proportional to 306,002,813.70, 459,004,220.55 and 279,218,187.30 is: 418,827,280.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,002,813.70 : 459,004,220.55 = 279,218,187.30 : x
  2. Step 2: Convert to fraction form
    306,002,813.70/459,004,220.55 = 279,218,187.30/x
  3. Step 3: Cross multiply
    306,002,813.70x = 459,004,220.55 × 279,218,187.30
  4. Step 4: Simplify right side
    306,002,813.70x = 128,162,326,425,020,416
  5. Step 5: Solve for x
    x = 128,162,326,425,020,416/306,002,813.70
  6. Step 6: Final answer
    x = 418,827,280.95

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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.