Home / 295,121,319.20-442,681,978.80-172,677,312.80

Finding the Fourth Proportional to 295,121,319.20, 442,681,978.80 and 172,677,312.80

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Solution

The fourth proportional to 295,121,319.20, 442,681,978.80 and 172,677,312.80 is: 259,015,969.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,121,319.20 : 442,681,978.80 = 172,677,312.80 : x
  2. Step 2: Convert to fraction form
    295,121,319.20/442,681,978.80 = 172,677,312.80/x
  3. Step 3: Cross multiply
    295,121,319.20x = 442,681,978.80 × 172,677,312.80
  4. Step 4: Simplify right side
    295,121,319.20x = 76,441,134,524,170,576
  5. Step 5: Solve for x
    x = 76,441,134,524,170,576/295,121,319.20
  6. Step 6: Final answer
    x = 259,015,969.20

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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.