Home / 513,039,617.90-707,975,705.30-278,085,233.96

Finding the Fourth Proportional to 513,039,617.90, 707,975,705.30 and 278,085,233.96

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Solution

The fourth proportional to 513,039,617.90, 707,975,705.30 and 278,085,233.96 is: 383,747,341.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,039,617.90 : 707,975,705.30 = 278,085,233.96 : x
  2. Step 2: Convert to fraction form
    513,039,617.90/707,975,705.30 = 278,085,233.96/x
  3. Step 3: Cross multiply
    513,039,617.90x = 707,975,705.30 × 278,085,233.96
  4. Step 4: Simplify right side
    513,039,617.90x = 196,877,589,646,346,496
  5. Step 5: Solve for x
    x = 196,877,589,646,346,496/513,039,617.90
  6. Step 6: Final answer
    x = 383,747,341.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.