Home / 52,510,274.40-78,728,086.80-20,149,672.80

Finding the Fourth Proportional to 52,510,274.40, 78,728,086.80 and 20,149,672.80

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Solution

The fourth proportional to 52,510,274.40, 78,728,086.80 and 20,149,672.80 is: 30,210,186.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,510,274.40 : 78,728,086.80 = 20,149,672.80 : x
  2. Step 2: Convert to fraction form
    52,510,274.40/78,728,086.80 = 20,149,672.80/x
  3. Step 3: Cross multiply
    52,510,274.40x = 78,728,086.80 × 20,149,672.80
  4. Step 4: Simplify right side
    52,510,274.40x = 1,586,345,189,189,999
  5. Step 5: Solve for x
    x = 1,586,345,189,189,999/52,510,274.40
  6. Step 6: Final answer
    x = 30,210,186.62

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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.