Home / 513,039,612.25-707,975,697.43-278,085,228.19

Finding the Fourth Proportional to 513,039,612.25, 707,975,697.43 and 278,085,228.19

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Solution

The fourth proportional to 513,039,612.25, 707,975,697.43 and 278,085,228.19 is: 383,747,333.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,039,612.25 : 707,975,697.43 = 278,085,228.19 : x
  2. Step 2: Convert to fraction form
    513,039,612.25/707,975,697.43 = 278,085,228.19/x
  3. Step 3: Cross multiply
    513,039,612.25x = 707,975,697.43 × 278,085,228.19
  4. Step 4: Simplify right side
    513,039,612.25x = 196,877,583,372,795,936
  5. Step 5: Solve for x
    x = 196,877,583,372,795,936/513,039,612.25
  6. Step 6: Final answer
    x = 383,747,333.87

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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.