Home / 10,282,632.10-15,423,948.15-8,640,340.90

Finding the Fourth Proportional to 10,282,632.10, 15,423,948.15 and 8,640,340.90

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Solution

The fourth proportional to 10,282,632.10, 15,423,948.15 and 8,640,340.90 is: 12,960,511.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,282,632.10 : 15,423,948.15 = 8,640,340.90 : x
  2. Step 2: Convert to fraction form
    10,282,632.10/15,423,948.15 = 8,640,340.90/x
  3. Step 3: Cross multiply
    10,282,632.10x = 15,423,948.15 × 8,640,340.90
  4. Step 4: Simplify right side
    10,282,632.10x = 133,268,170,039,924.34
  5. Step 5: Solve for x
    x = 133,268,170,039,924.34/10,282,632.10
  6. Step 6: Final answer
    x = 12,960,511.35

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Double scale
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Similar ratio
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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.