Home / 8,142,400.10-12,213,600.15-5,308,048.10

Finding the Fourth Proportional to 8,142,400.10, 12,213,600.15 and 5,308,048.10

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Solution

The fourth proportional to 8,142,400.10, 12,213,600.15 and 5,308,048.10 is: 7,962,072.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142,400.10 : 12,213,600.15 = 5,308,048.10 : x
  2. Step 2: Convert to fraction form
    8,142,400.10/12,213,600.15 = 5,308,048.10/x
  3. Step 3: Cross multiply
    8,142,400.10x = 12,213,600.15 × 5,308,048.10
  4. Step 4: Simplify right side
    8,142,400.10x = 64,830,377,070,367.21
  5. Step 5: Solve for x
    x = 64,830,377,070,367.21/8,142,400.10
  6. Step 6: Final answer
    x = 7,962,072.15

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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.