Home / 8,640,044.10-12,960,066.15-8,453,420.10

Finding the Fourth Proportional to 8,640,044.10, 12,960,066.15 and 8,453,420.10

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Solution

The fourth proportional to 8,640,044.10, 12,960,066.15 and 8,453,420.10 is: 12,680,130.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,640,044.10 : 12,960,066.15 = 8,453,420.10 : x
  2. Step 2: Convert to fraction form
    8,640,044.10/12,960,066.15 = 8,453,420.10/x
  3. Step 3: Cross multiply
    8,640,044.10x = 12,960,066.15 × 8,453,420.10
  4. Step 4: Simplify right side
    8,640,044.10x = 109,556,883,689,739.61
  5. Step 5: Solve for x
    x = 109,556,883,689,739.61/8,640,044.10
  6. Step 6: Final answer
    x = 12,680,130.15

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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.