Home / 21,250,812.40-31,947,077.40-18,133,025.20

Finding the Fourth Proportional to 21,250,812.40, 31,947,077.40 and 18,133,025.20

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Solution

The fourth proportional to 21,250,812.40, 31,947,077.40 and 18,133,025.20 is: 27,260,000.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,250,812.40 : 31,947,077.40 = 18,133,025.20 : x
  2. Step 2: Convert to fraction form
    21,250,812.40/31,947,077.40 = 18,133,025.20/x
  3. Step 3: Cross multiply
    21,250,812.40x = 31,947,077.40 × 18,133,025.20
  4. Step 4: Simplify right side
    21,250,812.40x = 579,297,159,560,550.38
  5. Step 5: Solve for x
    x = 579,297,159,560,550.38/21,250,812.40
  6. Step 6: Final answer
    x = 27,260,000.64

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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.