Home / 516,228,831.87-712,386,818.43-281,281,422.98

Finding the Fourth Proportional to 516,228,831.87, 712,386,818.43 and 281,281,422.98

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Solution

The fourth proportional to 516,228,831.87, 712,386,818.43 and 281,281,422.98 is: 388,163,476.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,228,831.87 : 712,386,818.43 = 281,281,422.98 : x
  2. Step 2: Convert to fraction form
    516,228,831.87/712,386,818.43 = 281,281,422.98/x
  3. Step 3: Cross multiply
    516,228,831.87x = 712,386,818.43 × 281,281,422.98
  4. Step 4: Simplify right side
    516,228,831.87x = 200,381,178,000,185,280
  5. Step 5: Solve for x
    x = 200,381,178,000,185,280/516,228,831.87
  6. Step 6: Final answer
    x = 388,163,476.41

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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.