Home / 20,680,077.70-31,020,116.55-5,534,009.20

Finding the Fourth Proportional to 20,680,077.70, 31,020,116.55 and 5,534,009.20

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Solution

The fourth proportional to 20,680,077.70, 31,020,116.55 and 5,534,009.20 is: 8,301,013.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,680,077.70 : 31,020,116.55 = 5,534,009.20 : x
  2. Step 2: Convert to fraction form
    20,680,077.70/31,020,116.55 = 5,534,009.20/x
  3. Step 3: Cross multiply
    20,680,077.70x = 31,020,116.55 × 5,534,009.20
  4. Step 4: Simplify right side
    20,680,077.70x = 171,665,610,372,772.28
  5. Step 5: Solve for x
    x = 171,665,610,372,772.28/20,680,077.70
  6. Step 6: Final answer
    x = 8,301,013.80

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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.