Home / 279,936,030.60-419,904,045.90-143,887,134.60

Finding the Fourth Proportional to 279,936,030.60, 419,904,045.90 and 143,887,134.60

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Solution

The fourth proportional to 279,936,030.60, 419,904,045.90 and 143,887,134.60 is: 215,830,701.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,030.60 : 419,904,045.90 = 143,887,134.60 : x
  2. Step 2: Convert to fraction form
    279,936,030.60/419,904,045.90 = 143,887,134.60/x
  3. Step 3: Cross multiply
    279,936,030.60x = 419,904,045.90 × 143,887,134.60
  4. Step 4: Simplify right side
    279,936,030.60x = 60,418,789,971,497,872
  5. Step 5: Solve for x
    x = 60,418,789,971,497,872/279,936,030.60
  6. Step 6: Final answer
    x = 215,830,701.90

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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.