Home / 89,621,439.78-123,681,403.94-49,928,948.02

Finding the Fourth Proportional to 89,621,439.78, 123,681,403.94 and 49,928,948.02

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Solution

The fourth proportional to 89,621,439.78, 123,681,403.94 and 49,928,948.02 is: 68,904,074.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,621,439.78 : 123,681,403.94 = 49,928,948.02 : x
  2. Step 2: Convert to fraction form
    89,621,439.78/123,681,403.94 = 49,928,948.02/x
  3. Step 3: Cross multiply
    89,621,439.78x = 123,681,403.94 × 49,928,948.02
  4. Step 4: Simplify right side
    89,621,439.78x = 6,175,282,387,710,433
  5. Step 5: Solve for x
    x = 6,175,282,387,710,433/89,621,439.78
  6. Step 6: Final answer
    x = 68,904,074.77

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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.