Home / 279,936,005.80-419,904,008.70-88,459,781.80

Finding the Fourth Proportional to 279,936,005.80, 419,904,008.70 and 88,459,781.80

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Solution

The fourth proportional to 279,936,005.80, 419,904,008.70 and 88,459,781.80 is: 132,689,672.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,005.80 : 419,904,008.70 = 88,459,781.80 : x
  2. Step 2: Convert to fraction form
    279,936,005.80/419,904,008.70 = 88,459,781.80/x
  3. Step 3: Cross multiply
    279,936,005.80x = 419,904,008.70 × 88,459,781.80
  4. Step 4: Simplify right side
    279,936,005.80x = 37,144,616,986,547,296
  5. Step 5: Solve for x
    x = 37,144,616,986,547,296/279,936,005.80
  6. Step 6: Final answer
    x = 132,689,672.70

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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.