Home / 12,928,710.60-19,414,061.10-8,687,680.20

Finding the Fourth Proportional to 12,928,710.60, 19,414,061.10 and 8,687,680.20

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Solution

The fourth proportional to 12,928,710.60, 19,414,061.10 and 8,687,680.20 is: 13,045,628.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928,710.60 : 19,414,061.10 = 8,687,680.20 : x
  2. Step 2: Convert to fraction form
    12,928,710.60/19,414,061.10 = 8,687,680.20/x
  3. Step 3: Cross multiply
    12,928,710.60x = 19,414,061.10 × 8,687,680.20
  4. Step 4: Simplify right side
    12,928,710.60x = 168,663,154,220,060.22
  5. Step 5: Solve for x
    x = 168,663,154,220,060.22/12,928,710.60
  6. Step 6: Final answer
    x = 13,045,628.40

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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.