Home / 80,902,079.40-121,353,119.10-53,692,300.20

Finding the Fourth Proportional to 80,902,079.40, 121,353,119.10 and 53,692,300.20

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Solution

The fourth proportional to 80,902,079.40, 121,353,119.10 and 53,692,300.20 is: 80,538,450.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,902,079.40 : 121,353,119.10 = 53,692,300.20 : x
  2. Step 2: Convert to fraction form
    80,902,079.40/121,353,119.10 = 53,692,300.20/x
  3. Step 3: Cross multiply
    80,902,079.40x = 121,353,119.10 × 53,692,300.20
  4. Step 4: Simplify right side
    80,902,079.40x = 6,515,728,100,923,554
  5. Step 5: Solve for x
    x = 6,515,728,100,923,554/80,902,079.40
  6. Step 6: Final answer
    x = 80,538,450.30

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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.