Home / 21,057,619.40-31,561,545.90-8,927,059.40

Finding the Fourth Proportional to 21,057,619.40, 31,561,545.90 and 8,927,059.40

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Solution

The fourth proportional to 21,057,619.40, 31,561,545.90 and 8,927,059.40 is: 13,380,040.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,057,619.40 : 31,561,545.90 = 8,927,059.40 : x
  2. Step 2: Convert to fraction form
    21,057,619.40/31,561,545.90 = 8,927,059.40/x
  3. Step 3: Cross multiply
    21,057,619.40x = 31,561,545.90 × 8,927,059.40
  4. Step 4: Simplify right side
    21,057,619.40x = 281,751,795,005,126.44
  5. Step 5: Solve for x
    x = 281,751,795,005,126.44/21,057,619.40
  6. Step 6: Final answer
    x = 13,380,040.24

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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.