Home / 279,936,332.90-419,904,499.35-256,127,776.10

Finding the Fourth Proportional to 279,936,332.90, 419,904,499.35 and 256,127,776.10

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Solution

The fourth proportional to 279,936,332.90, 419,904,499.35 and 256,127,776.10 is: 384,191,664.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,332.90 : 419,904,499.35 = 256,127,776.10 : x
  2. Step 2: Convert to fraction form
    279,936,332.90/419,904,499.35 = 256,127,776.10/x
  3. Step 3: Cross multiply
    279,936,332.90x = 419,904,499.35 × 256,127,776.10
  4. Step 4: Simplify right side
    279,936,332.90x = 107,549,205,592,899,392
  5. Step 5: Solve for x
    x = 107,549,205,592,899,392/279,936,332.90
  6. Step 6: Final answer
    x = 384,191,664.15

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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.