Home / 142,634,758.20-196,836,692.40-80,767,152.60

Finding the Fourth Proportional to 142,634,758.20, 196,836,692.40 and 80,767,152.60

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Solution

The fourth proportional to 142,634,758.20, 196,836,692.40 and 80,767,152.60 is: 111,459,081.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,634,758.20 : 196,836,692.40 = 80,767,152.60 : x
  2. Step 2: Convert to fraction form
    142,634,758.20/196,836,692.40 = 80,767,152.60/x
  3. Step 3: Cross multiply
    142,634,758.20x = 196,836,692.40 × 80,767,152.60
  4. Step 4: Simplify right side
    142,634,758.20x = 15,897,939,172,350,060
  5. Step 5: Solve for x
    x = 15,897,939,172,350,060/142,634,758.20
  6. Step 6: Final answer
    x = 111,459,081.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.