Home / 279,936,006.90-419,904,010.35-126,587,066.10

Finding the Fourth Proportional to 279,936,006.90, 419,904,010.35 and 126,587,066.10

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Solution

The fourth proportional to 279,936,006.90, 419,904,010.35 and 126,587,066.10 is: 189,880,599.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,006.90 : 419,904,010.35 = 126,587,066.10 : x
  2. Step 2: Convert to fraction form
    279,936,006.90/419,904,010.35 = 126,587,066.10/x
  3. Step 3: Cross multiply
    279,936,006.90x = 419,904,010.35 × 126,587,066.10
  4. Step 4: Simplify right side
    279,936,006.90x = 53,154,416,713,830,536
  5. Step 5: Solve for x
    x = 53,154,416,713,830,536/279,936,006.90
  6. Step 6: Final answer
    x = 189,880,599.15

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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.