Home / 21,328,505.60-31,996,248.96-6,756,419.84

Finding the Fourth Proportional to 21,328,505.60, 31,996,248.96 and 6,756,419.84

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Solution

The fourth proportional to 21,328,505.60, 31,996,248.96 and 6,756,419.84 is: 10,135,735.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,328,505.60 : 31,996,248.96 = 6,756,419.84 : x
  2. Step 2: Convert to fraction form
    21,328,505.60/31,996,248.96 = 6,756,419.84/x
  3. Step 3: Cross multiply
    21,328,505.60x = 31,996,248.96 × 6,756,419.84
  4. Step 4: Simplify right side
    21,328,505.60x = 216,180,091,278,923.38
  5. Step 5: Solve for x
    x = 216,180,091,278,923.38/21,328,505.60
  6. Step 6: Final answer
    x = 10,135,735.50

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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.