Home / 172,490,680.80-258,736,021.20-169,089,458.40

Finding the Fourth Proportional to 172,490,680.80, 258,736,021.20 and 169,089,458.40

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Solution

The fourth proportional to 172,490,680.80, 258,736,021.20 and 169,089,458.40 is: 253,634,187.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,490,680.80 : 258,736,021.20 = 169,089,458.40 : x
  2. Step 2: Convert to fraction form
    172,490,680.80/258,736,021.20 = 169,089,458.40/x
  3. Step 3: Cross multiply
    172,490,680.80x = 258,736,021.20 × 169,089,458.40
  4. Step 4: Simplify right side
    172,490,680.80x = 43,749,533,693,278,920
  5. Step 5: Solve for x
    x = 43,749,533,693,278,920/172,490,680.80
  6. Step 6: Final answer
    x = 253,634,187.60

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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.