Home / 212,049,801.60-318,373,300.80-131,428,233.60

Finding the Fourth Proportional to 212,049,801.60, 318,373,300.80 and 131,428,233.60

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Solution

The fourth proportional to 212,049,801.60, 318,373,300.80 and 131,428,233.60 is: 197,327,421.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,049,801.60 : 318,373,300.80 = 131,428,233.60 : x
  2. Step 2: Convert to fraction form
    212,049,801.60/318,373,300.80 = 131,428,233.60/x
  3. Step 3: Cross multiply
    212,049,801.60x = 318,373,300.80 × 131,428,233.60
  4. Step 4: Simplify right side
    212,049,801.60x = 41,843,240,549,545,464
  5. Step 5: Solve for x
    x = 41,843,240,549,545,464/212,049,801.60
  6. Step 6: Final answer
    x = 197,327,421.36

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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.