Home / 516,228,843-712,386,833.79-281,281,434.10

Finding the Fourth Proportional to 516,228,843, 712,386,833.79 and 281,281,434.10

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Solution

The fourth proportional to 516,228,843, 712,386,833.79 and 281,281,434.10 is: 388,163,491.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,228,843 : 712,386,833.79 = 281,281,434.10 : x
  2. Step 2: Convert to fraction form
    516,228,843/712,386,833.79 = 281,281,434.10/x
  3. Step 3: Cross multiply
    516,228,843x = 712,386,833.79 × 281,281,434.10
  4. Step 4: Simplify right side
    516,228,843x = 200,381,190,242,409,536
  5. Step 5: Solve for x
    x = 200,381,190,242,409,536/516,228,843
  6. Step 6: Final answer
    x = 388,163,491.75

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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.