Home / 13,988,000.40-20,982,691.80-7,269,536.40

Finding the Fourth Proportional to 13,988,000.40, 20,982,691.80 and 7,269,536.40

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Solution

The fourth proportional to 13,988,000.40, 20,982,691.80 and 7,269,536.40 is: 10,904,663.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,988,000.40 : 20,982,691.80 = 7,269,536.40 : x
  2. Step 2: Convert to fraction form
    13,988,000.40/20,982,691.80 = 7,269,536.40/x
  3. Step 3: Cross multiply
    13,988,000.40x = 20,982,691.80 × 7,269,536.40
  4. Step 4: Simplify right side
    13,988,000.40x = 152,534,441,810,081.53
  5. Step 5: Solve for x
    x = 152,534,441,810,081.53/13,988,000.40
  6. Step 6: Final answer
    x = 10,904,663.82

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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.