Home / 20,591,689.50-30,896,100.81-9,071,260.38

Finding the Fourth Proportional to 20,591,689.50, 30,896,100.81 and 9,071,260.38

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Solution

The fourth proportional to 20,591,689.50, 30,896,100.81 and 9,071,260.38 is: 13,610,664.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,591,689.50 : 30,896,100.81 = 9,071,260.38 : x
  2. Step 2: Convert to fraction form
    20,591,689.50/30,896,100.81 = 9,071,260.38/x
  3. Step 3: Cross multiply
    20,591,689.50x = 30,896,100.81 × 9,071,260.38
  4. Step 4: Simplify right side
    20,591,689.50x = 280,266,575,174,238.91
  5. Step 5: Solve for x
    x = 280,266,575,174,238.91/20,591,689.50
  6. Step 6: Final answer
    x = 13,610,664.40

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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.