Home / 8,142,400.60-12,213,600.90-5,308,048.60

Finding the Fourth Proportional to 8,142,400.60, 12,213,600.90 and 5,308,048.60

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Solution

The fourth proportional to 8,142,400.60, 12,213,600.90 and 5,308,048.60 is: 7,962,072.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142,400.60 : 12,213,600.90 = 5,308,048.60 : x
  2. Step 2: Convert to fraction form
    8,142,400.60/12,213,600.90 = 5,308,048.60/x
  3. Step 3: Cross multiply
    8,142,400.60x = 12,213,600.90 × 5,308,048.60
  4. Step 4: Simplify right side
    8,142,400.60x = 64,830,387,158,203.73
  5. Step 5: Solve for x
    x = 64,830,387,158,203.73/8,142,400.60
  6. Step 6: Final answer
    x = 7,962,072.90

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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.