Home / 178,680,008.70-268,020,013.05-142,848,200.70

Finding the Fourth Proportional to 178,680,008.70, 268,020,013.05 and 142,848,200.70

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Solution

The fourth proportional to 178,680,008.70, 268,020,013.05 and 142,848,200.70 is: 214,272,301.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,680,008.70 : 268,020,013.05 = 142,848,200.70 : x
  2. Step 2: Convert to fraction form
    178,680,008.70/268,020,013.05 = 142,848,200.70/x
  3. Step 3: Cross multiply
    178,680,008.70x = 268,020,013.05 × 142,848,200.70
  4. Step 4: Simplify right side
    178,680,008.70x = 38,286,176,615,783,016
  5. Step 5: Solve for x
    x = 38,286,176,615,783,016/178,680,008.70
  6. Step 6: Final answer
    x = 214,272,301.05

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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.