Home / 142,569,283.44-196,711,890.01-80,689,620.18

Finding the Fourth Proportional to 142,569,283.44, 196,711,890.01 and 80,689,620.18

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Solution

The fourth proportional to 142,569,283.44, 196,711,890.01 and 80,689,620.18 is: 111,332,590.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,569,283.44 : 196,711,890.01 = 80,689,620.18 : x
  2. Step 2: Convert to fraction form
    142,569,283.44/196,711,890.01 = 80,689,620.18/x
  3. Step 3: Cross multiply
    142,569,283.44x = 196,711,890.01 × 80,689,620.18
  4. Step 4: Simplify right side
    142,569,283.44x = 15,872,607,689,897,698
  5. Step 5: Solve for x
    x = 15,872,607,689,897,698/142,569,283.44
  6. Step 6: Final answer
    x = 111,332,590.77

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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.