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Finding the Fourth Proportional to 10,691,865.40, 16,002,368.70 and 9,841,559.80

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Solution

The fourth proportional to 10,691,865.40, 16,002,368.70 and 9,841,559.80 is: 14,729,727.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,691,865.40 : 16,002,368.70 = 9,841,559.80 : x
  2. Step 2: Convert to fraction form
    10,691,865.40/16,002,368.70 = 9,841,559.80/x
  3. Step 3: Cross multiply
    10,691,865.40x = 16,002,368.70 × 9,841,559.80
  4. Step 4: Simplify right side
    10,691,865.40x = 157,488,268,502,698.25
  5. Step 5: Solve for x
    x = 157,488,268,502,698.25/10,691,865.40
  6. Step 6: Final answer
    x = 14,729,727.94

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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.