Home / 288,025,984.44-431,864,021.30-112,939,261.56

Finding the Fourth Proportional to 288,025,984.44, 431,864,021.30 and 112,939,261.56

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Solution

The fourth proportional to 288,025,984.44, 431,864,021.30 and 112,939,261.56 is: 169,340,289.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,025,984.44 : 431,864,021.30 = 112,939,261.56 : x
  2. Step 2: Convert to fraction form
    288,025,984.44/431,864,021.30 = 112,939,261.56/x
  3. Step 3: Cross multiply
    288,025,984.44x = 431,864,021.30 × 112,939,261.56
  4. Step 4: Simplify right side
    288,025,984.44x = 48,774,403,659,389,416
  5. Step 5: Solve for x
    x = 48,774,403,659,389,416/288,025,984.44
  6. Step 6: Final answer
    x = 169,340,289.75

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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.