Home / 168,502,079.40-252,753,119.10-99,343,890.60

Finding the Fourth Proportional to 168,502,079.40, 252,753,119.10 and 99,343,890.60

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Solution

The fourth proportional to 168,502,079.40, 252,753,119.10 and 99,343,890.60 is: 149,015,835.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,502,079.40 : 252,753,119.10 = 99,343,890.60 : x
  2. Step 2: Convert to fraction form
    168,502,079.40/252,753,119.10 = 99,343,890.60/x
  3. Step 3: Cross multiply
    168,502,079.40x = 252,753,119.10 × 99,343,890.60
  4. Step 4: Simplify right side
    168,502,079.40x = 25,109,478,212,679,168
  5. Step 5: Solve for x
    x = 25,109,478,212,679,168/168,502,079.40
  6. Step 6: Final answer
    x = 149,015,835.90

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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.