Home / 228,519,876.79-315,453,976.20-154,281,001.32

Finding the Fourth Proportional to 228,519,876.79, 315,453,976.20 and 154,281,001.32

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Solution

The fourth proportional to 228,519,876.79, 315,453,976.20 and 154,281,001.32 is: 212,972,963.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,519,876.79 : 315,453,976.20 = 154,281,001.32 : x
  2. Step 2: Convert to fraction form
    228,519,876.79/315,453,976.20 = 154,281,001.32/x
  3. Step 3: Cross multiply
    228,519,876.79x = 315,453,976.20 × 154,281,001.32
  4. Step 4: Simplify right side
    228,519,876.79x = 48,668,555,318,511,448
  5. Step 5: Solve for x
    x = 48,668,555,318,511,448/228,519,876.79
  6. Step 6: Final answer
    x = 212,972,963.24

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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.