Home / 513,039,600.17-707,975,680.72-278,085,216.11

Finding the Fourth Proportional to 513,039,600.17, 707,975,680.72 and 278,085,216.11

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Solution

The fourth proportional to 513,039,600.17, 707,975,680.72 and 278,085,216.11 is: 383,747,317.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,039,600.17 : 707,975,680.72 = 278,085,216.11 : x
  2. Step 2: Convert to fraction form
    513,039,600.17/707,975,680.72 = 278,085,216.11/x
  3. Step 3: Cross multiply
    513,039,600.17x = 707,975,680.72 × 278,085,216.11
  4. Step 4: Simplify right side
    513,039,600.17x = 196,877,570,173,645,568
  5. Step 5: Solve for x
    x = 196,877,570,173,645,568/513,039,600.17
  6. Step 6: Final answer
    x = 383,747,317.18

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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.