Home / 207,586,871.60-311,380,307.40-131,145,681.20

Finding the Fourth Proportional to 207,586,871.60, 311,380,307.40 and 131,145,681.20

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Solution

The fourth proportional to 207,586,871.60, 311,380,307.40 and 131,145,681.20 is: 196,718,521.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,586,871.60 : 311,380,307.40 = 131,145,681.20 : x
  2. Step 2: Convert to fraction form
    207,586,871.60/311,380,307.40 = 131,145,681.20/x
  3. Step 3: Cross multiply
    207,586,871.60x = 311,380,307.40 × 131,145,681.20
  4. Step 4: Simplify right side
    207,586,871.60x = 40,836,182,526,238,400
  5. Step 5: Solve for x
    x = 40,836,182,526,238,400/207,586,871.60
  6. Step 6: Final answer
    x = 196,718,521.80

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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.