Home / 202,129,343.40-303,194,015.10-99,872,221.80

Finding the Fourth Proportional to 202,129,343.40, 303,194,015.10 and 99,872,221.80

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Solution

The fourth proportional to 202,129,343.40, 303,194,015.10 and 99,872,221.80 is: 149,808,332.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,129,343.40 : 303,194,015.10 = 99,872,221.80 : x
  2. Step 2: Convert to fraction form
    202,129,343.40/303,194,015.10 = 99,872,221.80/x
  3. Step 3: Cross multiply
    202,129,343.40x = 303,194,015.10 × 99,872,221.80
  4. Step 4: Simplify right side
    202,129,343.40x = 30,280,659,924,499,752
  5. Step 5: Solve for x
    x = 30,280,659,924,499,752/202,129,343.40
  6. Step 6: Final answer
    x = 149,808,332.70

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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.