Home / 279,936,079.60-419,904,119.40-207,376,668.40

Finding the Fourth Proportional to 279,936,079.60, 419,904,119.40 and 207,376,668.40

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Solution

The fourth proportional to 279,936,079.60, 419,904,119.40 and 207,376,668.40 is: 311,065,002.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,079.60 : 419,904,119.40 = 207,376,668.40 : x
  2. Step 2: Convert to fraction form
    279,936,079.60/419,904,119.40 = 207,376,668.40/x
  3. Step 3: Cross multiply
    279,936,079.60x = 419,904,119.40 × 207,376,668.40
  4. Step 4: Simplify right side
    279,936,079.60x = 87,078,317,328,607,808
  5. Step 5: Solve for x
    x = 87,078,317,328,607,808/279,936,079.60
  6. Step 6: Final answer
    x = 311,065,002.60

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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.