Home / 21,062,980.80-31,594,471.20-17,472,801.60

Finding the Fourth Proportional to 21,062,980.80, 31,594,471.20 and 17,472,801.60

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Solution

The fourth proportional to 21,062,980.80, 31,594,471.20 and 17,472,801.60 is: 26,209,202.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062,980.80 : 31,594,471.20 = 17,472,801.60 : x
  2. Step 2: Convert to fraction form
    21,062,980.80/31,594,471.20 = 17,472,801.60/x
  3. Step 3: Cross multiply
    21,062,980.80x = 31,594,471.20 × 17,472,801.60
  4. Step 4: Simplify right side
    21,062,980.80x = 552,043,926,934,513.94
  5. Step 5: Solve for x
    x = 552,043,926,934,513.94/21,062,980.80
  6. Step 6: Final answer
    x = 26,209,202.40

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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.