Home / 21,029,259.60-31,543,889.40-11,463,321.60

Finding the Fourth Proportional to 21,029,259.60, 31,543,889.40 and 11,463,321.60

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Solution

The fourth proportional to 21,029,259.60, 31,543,889.40 and 11,463,321.60 is: 17,194,982.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,029,259.60 : 31,543,889.40 = 11,463,321.60 : x
  2. Step 2: Convert to fraction form
    21,029,259.60/31,543,889.40 = 11,463,321.60/x
  3. Step 3: Cross multiply
    21,029,259.60x = 31,543,889.40 × 11,463,321.60
  4. Step 4: Simplify right side
    21,029,259.60x = 361,597,748,707,031
  5. Step 5: Solve for x
    x = 361,597,748,707,031/21,029,259.60
  6. Step 6: Final answer
    x = 17,194,982.40

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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.