Home / 178,680,009.20-268,020,013.80-142,848,201.20

Finding the Fourth Proportional to 178,680,009.20, 268,020,013.80 and 142,848,201.20

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Solution

The fourth proportional to 178,680,009.20, 268,020,013.80 and 142,848,201.20 is: 214,272,301.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,680,009.20 : 268,020,013.80 = 142,848,201.20 : x
  2. Step 2: Convert to fraction form
    178,680,009.20/268,020,013.80 = 142,848,201.20/x
  3. Step 3: Cross multiply
    178,680,009.20x = 268,020,013.80 × 142,848,201.20
  4. Step 4: Simplify right side
    178,680,009.20x = 38,286,176,856,929,176
  5. Step 5: Solve for x
    x = 38,286,176,856,929,176/178,680,009.20
  6. Step 6: Final answer
    x = 214,272,301.80

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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.