Home / 165,920,629.20-248,880,943.80-79,827,187.20

Finding the Fourth Proportional to 165,920,629.20, 248,880,943.80 and 79,827,187.20

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Solution

The fourth proportional to 165,920,629.20, 248,880,943.80 and 79,827,187.20 is: 119,740,780.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,920,629.20 : 248,880,943.80 = 79,827,187.20 : x
  2. Step 2: Convert to fraction form
    165,920,629.20/248,880,943.80 = 79,827,187.20/x
  3. Step 3: Cross multiply
    165,920,629.20x = 248,880,943.80 × 79,827,187.20
  4. Step 4: Simplify right side
    165,920,629.20x = 19,867,465,691,235,280
  5. Step 5: Solve for x
    x = 19,867,465,691,235,280/165,920,629.20
  6. Step 6: Final answer
    x = 119,740,780.80

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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.