Home / 168,502,080.40-252,753,120.60-99,343,891.60

Finding the Fourth Proportional to 168,502,080.40, 252,753,120.60 and 99,343,891.60

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Solution

The fourth proportional to 168,502,080.40, 252,753,120.60 and 99,343,891.60 is: 149,015,837.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,502,080.40 : 252,753,120.60 = 99,343,891.60 : x
  2. Step 2: Convert to fraction form
    168,502,080.40/252,753,120.60 = 99,343,891.60/x
  3. Step 3: Cross multiply
    168,502,080.40x = 252,753,120.60 × 99,343,891.60
  4. Step 4: Simplify right side
    168,502,080.40x = 25,109,478,614,448,124
  5. Step 5: Solve for x
    x = 25,109,478,614,448,124/168,502,080.40
  6. Step 6: Final answer
    x = 149,015,837.40

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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.