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Finding the Fourth Proportional to 6,642,702.40, 9,957,784.20 and 3,605,591.20

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Solution

The fourth proportional to 6,642,702.40, 9,957,784.20 and 3,605,591.20 is: 5,404,983.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642,702.40 : 9,957,784.20 = 3,605,591.20 : x
  2. Step 2: Convert to fraction form
    6,642,702.40/9,957,784.20 = 3,605,591.20/x
  3. Step 3: Cross multiply
    6,642,702.40x = 9,957,784.20 × 3,605,591.20
  4. Step 4: Simplify right side
    6,642,702.40x = 35,903,699,083,019.04
  5. Step 5: Solve for x
    x = 35,903,699,083,019.04/6,642,702.40
  6. Step 6: Final answer
    x = 5,404,983.83

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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.