Home / 513,039,633.90-707,975,727.39-278,085,249.96

Finding the Fourth Proportional to 513,039,633.90, 707,975,727.39 and 278,085,249.96

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Solution

The fourth proportional to 513,039,633.90, 707,975,727.39 and 278,085,249.96 is: 383,747,363.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,039,633.90 : 707,975,727.39 = 278,085,249.96 : x
  2. Step 2: Convert to fraction form
    513,039,633.90/707,975,727.39 = 278,085,249.96/x
  3. Step 3: Cross multiply
    513,039,633.90x = 707,975,727.39 × 278,085,249.96
  4. Step 4: Simplify right side
    513,039,633.90x = 196,877,607,116,860,960
  5. Step 5: Solve for x
    x = 196,877,607,116,860,960/513,039,633.90
  6. Step 6: Final answer
    x = 383,747,363.96

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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.