Home / 280,840,569.72-421,279,338.78-73,584,055.32

Finding the Fourth Proportional to 280,840,569.72, 421,279,338.78 and 73,584,055.32

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Solution

The fourth proportional to 280,840,569.72, 421,279,338.78 and 73,584,055.32 is: 110,380,926.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,840,569.72 : 421,279,338.78 = 73,584,055.32 : x
  2. Step 2: Convert to fraction form
    280,840,569.72/421,279,338.78 = 73,584,055.32/x
  3. Step 3: Cross multiply
    280,840,569.72x = 421,279,338.78 × 73,584,055.32
  4. Step 4: Simplify right side
    280,840,569.72x = 30,999,442,169,960,536
  5. Step 5: Solve for x
    x = 30,999,442,169,960,536/280,840,569.72
  6. Step 6: Final answer
    x = 110,380,926.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.