Home / 513,039,600.02-707,975,680.53-278,085,215.90

Finding the Fourth Proportional to 513,039,600.02, 707,975,680.53 and 278,085,215.90

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Solution

The fourth proportional to 513,039,600.02, 707,975,680.53 and 278,085,215.90 is: 383,747,316.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,039,600.02 : 707,975,680.53 = 278,085,215.90 : x
  2. Step 2: Convert to fraction form
    513,039,600.02/707,975,680.53 = 278,085,215.90/x
  3. Step 3: Cross multiply
    513,039,600.02x = 707,975,680.53 × 278,085,215.90
  4. Step 4: Simplify right side
    513,039,600.02x = 196,877,569,972,134,464
  5. Step 5: Solve for x
    x = 196,877,569,972,134,464/513,039,600.02
  6. Step 6: Final answer
    x = 383,747,316.90

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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.