Home / 279,936,421.10-419,904,631.65-260,804,545.10

Finding the Fourth Proportional to 279,936,421.10, 419,904,631.65 and 260,804,545.10

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Solution

The fourth proportional to 279,936,421.10, 419,904,631.65 and 260,804,545.10 is: 391,206,817.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,421.10 : 419,904,631.65 = 260,804,545.10 : x
  2. Step 2: Convert to fraction form
    279,936,421.10/419,904,631.65 = 260,804,545.10/x
  3. Step 3: Cross multiply
    279,936,421.10x = 419,904,631.65 × 260,804,545.10
  4. Step 4: Simplify right side
    279,936,421.10x = 109,513,036,442,861,296
  5. Step 5: Solve for x
    x = 109,513,036,442,861,296/279,936,421.10
  6. Step 6: Final answer
    x = 391,206,817.65

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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.