Home / 8,142,401.60-12,213,602.40-5,308,049.60

Finding the Fourth Proportional to 8,142,401.60, 12,213,602.40 and 5,308,049.60

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Solution

The fourth proportional to 8,142,401.60, 12,213,602.40 and 5,308,049.60 is: 7,962,074.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142,401.60 : 12,213,602.40 = 5,308,049.60 : x
  2. Step 2: Convert to fraction form
    8,142,401.60/12,213,602.40 = 5,308,049.60/x
  3. Step 3: Cross multiply
    8,142,401.60x = 12,213,602.40 × 5,308,049.60
  4. Step 4: Simplify right side
    8,142,401.60x = 64,830,407,333,879.04
  5. Step 5: Solve for x
    x = 64,830,407,333,879.04/8,142,401.60
  6. Step 6: Final answer
    x = 7,962,074.40

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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.