Home / 1,220,172,722.12-1,661,311,735.76-1,216,298,517.22

Finding the Fourth Proportional to 1,220,172,722.12, 1,661,311,735.76 and 1,216,298,517.22

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Solution

The fourth proportional to 1,220,172,722.12, 1,661,311,735.76 and 1,216,298,517.22 is: 1,656,036,857.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,172,722.12 : 1,661,311,735.76 = 1,216,298,517.22 : x
  2. Step 2: Convert to fraction form
    1,220,172,722.12/1,661,311,735.76 = 1,216,298,517.22/x
  3. Step 3: Cross multiply
    1,220,172,722.12x = 1,661,311,735.76 × 1,216,298,517.22
  4. Step 4: Simplify right side
    1,220,172,722.12x = 2,020,651,000,845,072,384
  5. Step 5: Solve for x
    x = 2,020,651,000,845,072,384/1,220,172,722.12
  6. Step 6: Final answer
    x = 1,656,036,857.91

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.