Home / 279,936,710.90-419,905,066.35-126,587,770.10

Finding the Fourth Proportional to 279,936,710.90, 419,905,066.35 and 126,587,770.10

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Solution

The fourth proportional to 279,936,710.90, 419,905,066.35 and 126,587,770.10 is: 189,881,655.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,710.90 : 419,905,066.35 = 126,587,770.10 : x
  2. Step 2: Convert to fraction form
    279,936,710.90/419,905,066.35 = 126,587,770.10/x
  3. Step 3: Cross multiply
    279,936,710.90x = 419,905,066.35 × 126,587,770.10
  4. Step 4: Simplify right side
    279,936,710.90x = 53,154,846,002,939,048
  5. Step 5: Solve for x
    x = 53,154,846,002,939,048/279,936,710.90
  6. Step 6: Final answer
    x = 189,881,655.15

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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.