Home / 86,878,137.96-119,912,711.04-49,729,952.52

Finding the Fourth Proportional to 86,878,137.96, 119,912,711.04 and 49,729,952.52

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Solution

The fourth proportional to 86,878,137.96, 119,912,711.04 and 49,729,952.52 is: 68,639,286.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,878,137.96 : 119,912,711.04 = 49,729,952.52 : x
  2. Step 2: Convert to fraction form
    86,878,137.96/119,912,711.04 = 49,729,952.52/x
  3. Step 3: Cross multiply
    86,878,137.96x = 119,912,711.04 × 49,729,952.52
  4. Step 4: Simplify right side
    86,878,137.96x = 5,963,253,426,563,681
  5. Step 5: Solve for x
    x = 5,963,253,426,563,681/86,878,137.96
  6. Step 6: Final answer
    x = 68,639,286.78

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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.