Home / 8,142,405.60-12,213,608.40-5,308,053.60

Finding the Fourth Proportional to 8,142,405.60, 12,213,608.40 and 5,308,053.60

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Solution

The fourth proportional to 8,142,405.60, 12,213,608.40 and 5,308,053.60 is: 7,962,080.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142,405.60 : 12,213,608.40 = 5,308,053.60 : x
  2. Step 2: Convert to fraction form
    8,142,405.60/12,213,608.40 = 5,308,053.60/x
  3. Step 3: Cross multiply
    8,142,405.60x = 12,213,608.40 × 5,308,053.60
  4. Step 4: Simplify right side
    8,142,405.60x = 64,830,488,036,610.23
  5. Step 5: Solve for x
    x = 64,830,488,036,610.23/8,142,405.60
  6. Step 6: Final answer
    x = 7,962,080.40

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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.