Home / 687,817,180.82-949,227,559.34-517,967,357.82

Finding the Fourth Proportional to 687,817,180.82, 949,227,559.34 and 517,967,357.82

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Solution

The fourth proportional to 687,817,180.82, 949,227,559.34 and 517,967,357.82 is: 714,824,963.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,817,180.82 : 949,227,559.34 = 517,967,357.82 : x
  2. Step 2: Convert to fraction form
    687,817,180.82/949,227,559.34 = 517,967,357.82/x
  3. Step 3: Cross multiply
    687,817,180.82x = 949,227,559.34 × 517,967,357.82
  4. Step 4: Simplify right side
    687,817,180.82x = 491,668,890,878,677,248
  5. Step 5: Solve for x
    x = 491,668,890,878,677,248/687,817,180.82
  6. Step 6: Final answer
    x = 714,824,963.08

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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.