Home / 18,722,901.30-28,042,361.55-15,363,669.30

Finding the Fourth Proportional to 18,722,901.30, 28,042,361.55 and 15,363,669.30

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Solution

The fourth proportional to 18,722,901.30, 28,042,361.55 and 15,363,669.30 is: 23,011,047.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722,901.30 : 28,042,361.55 = 15,363,669.30 : x
  2. Step 2: Convert to fraction form
    18,722,901.30/28,042,361.55 = 15,363,669.30/x
  3. Step 3: Cross multiply
    18,722,901.30x = 28,042,361.55 × 15,363,669.30
  4. Step 4: Simplify right side
    18,722,901.30x = 430,833,569,245,235.44
  5. Step 5: Solve for x
    x = 430,833,569,245,235.44/18,722,901.30
  6. Step 6: Final answer
    x = 23,011,047.40

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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.