Home / 21,071,366.40-31,571,620.20-17,457,567.60

Finding the Fourth Proportional to 21,071,366.40, 31,571,620.20 and 17,457,567.60

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Solution

The fourth proportional to 21,071,366.40, 31,571,620.20 and 17,457,567.60 is: 26,156,998.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,071,366.40 : 31,571,620.20 = 17,457,567.60 : x
  2. Step 2: Convert to fraction form
    21,071,366.40/31,571,620.20 = 17,457,567.60/x
  3. Step 3: Cross multiply
    21,071,366.40x = 31,571,620.20 × 17,457,567.60
  4. Step 4: Simplify right side
    21,071,366.40x = 551,163,693,883,025.56
  5. Step 5: Solve for x
    x = 551,163,693,883,025.56/21,071,366.40
  6. Step 6: Final answer
    x = 26,156,998.24

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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.