Home / 21,019,811.20-31,543,713.60-9,654,409.60

Finding the Fourth Proportional to 21,019,811.20, 31,543,713.60 and 9,654,409.60

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Solution

The fourth proportional to 21,019,811.20, 31,543,713.60 and 9,654,409.60 is: 14,488,043.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,019,811.20 : 31,543,713.60 = 9,654,409.60 : x
  2. Step 2: Convert to fraction form
    21,019,811.20/31,543,713.60 = 9,654,409.60/x
  3. Step 3: Cross multiply
    21,019,811.20x = 31,543,713.60 × 9,654,409.60
  4. Step 4: Simplify right side
    21,019,811.20x = 304,535,931,399,490.56
  5. Step 5: Solve for x
    x = 304,535,931,399,490.56/21,019,811.20
  6. Step 6: Final answer
    x = 14,488,043.14

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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.