Home / 10,404,002.20-15,606,003.30-8,640,405.40

Finding the Fourth Proportional to 10,404,002.20, 15,606,003.30 and 8,640,405.40

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Solution

The fourth proportional to 10,404,002.20, 15,606,003.30 and 8,640,405.40 is: 12,960,608.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,404,002.20 : 15,606,003.30 = 8,640,405.40 : x
  2. Step 2: Convert to fraction form
    10,404,002.20/15,606,003.30 = 8,640,405.40/x
  3. Step 3: Cross multiply
    10,404,002.20x = 15,606,003.30 × 8,640,405.40
  4. Step 4: Simplify right side
    10,404,002.20x = 134,842,195,185,737.83
  5. Step 5: Solve for x
    x = 134,842,195,185,737.83/10,404,002.20
  6. Step 6: Final answer
    x = 12,960,608.10

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1.5x scale

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.