Home / 21,546,043.20-32,319,064.80-19,782,446.40

Finding the Fourth Proportional to 21,546,043.20, 32,319,064.80 and 19,782,446.40

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Solution

The fourth proportional to 21,546,043.20, 32,319,064.80 and 19,782,446.40 is: 29,673,669.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,546,043.20 : 32,319,064.80 = 19,782,446.40 : x
  2. Step 2: Convert to fraction form
    21,546,043.20/32,319,064.80 = 19,782,446.40/x
  3. Step 3: Cross multiply
    21,546,043.20x = 32,319,064.80 × 19,782,446.40
  4. Step 4: Simplify right side
    21,546,043.20x = 639,350,167,104,126.62
  5. Step 5: Solve for x
    x = 639,350,167,104,126.62/21,546,043.20
  6. Step 6: Final answer
    x = 29,673,669.60

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1.5x scale

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.