Home / 8,318,047.20-12,477,070.80-5,084,786.40

Finding the Fourth Proportional to 8,318,047.20, 12,477,070.80 and 5,084,786.40

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Solution

The fourth proportional to 8,318,047.20, 12,477,070.80 and 5,084,786.40 is: 7,627,179.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318,047.20 : 12,477,070.80 = 5,084,786.40 : x
  2. Step 2: Convert to fraction form
    8,318,047.20/12,477,070.80 = 5,084,786.40/x
  3. Step 3: Cross multiply
    8,318,047.20x = 12,477,070.80 × 5,084,786.40
  4. Step 4: Simplify right side
    8,318,047.20x = 63,443,239,915,677.12
  5. Step 5: Solve for x
    x = 63,443,239,915,677.12/8,318,047.20
  6. Step 6: Final answer
    x = 7,627,179.60

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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.