Home / 21,782,963.60-32,674,445.40-20,790,940.40

Finding the Fourth Proportional to 21,782,963.60, 32,674,445.40 and 20,790,940.40

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Solution

The fourth proportional to 21,782,963.60, 32,674,445.40 and 20,790,940.40 is: 31,186,410.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,782,963.60 : 32,674,445.40 = 20,790,940.40 : x
  2. Step 2: Convert to fraction form
    21,782,963.60/32,674,445.40 = 20,790,940.40/x
  3. Step 3: Cross multiply
    21,782,963.60x = 32,674,445.40 × 20,790,940.40
  4. Step 4: Simplify right side
    21,782,963.60x = 679,332,446,914,454.12
  5. Step 5: Solve for x
    x = 679,332,446,914,454.12/21,782,963.60
  6. Step 6: Final answer
    x = 31,186,410.60

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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.