Home / 516,330,979.48-712,518,653.68-281,376,845.56

Finding the Fourth Proportional to 516,330,979.48, 712,518,653.68 and 281,376,845.56

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Solution

The fourth proportional to 516,330,979.48, 712,518,653.68 and 281,376,845.56 is: 388,290,184.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,330,979.48 : 712,518,653.68 = 281,376,845.56 : x
  2. Step 2: Convert to fraction form
    516,330,979.48/712,518,653.68 = 281,376,845.56/x
  3. Step 3: Cross multiply
    516,330,979.48x = 712,518,653.68 × 281,376,845.56
  4. Step 4: Simplify right side
    516,330,979.48x = 200,486,251,175,136,480
  5. Step 5: Solve for x
    x = 200,486,251,175,136,480/516,330,979.48
  6. Step 6: Final answer
    x = 388,290,184.29

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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.