Home / 1,220,172,718.11-1,661,311,730.31-1,216,298,513.22

Finding the Fourth Proportional to 1,220,172,718.11, 1,661,311,730.31 and 1,216,298,513.22

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Solution

The fourth proportional to 1,220,172,718.11, 1,661,311,730.31 and 1,216,298,513.22 is: 1,656,036,852.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,172,718.11 : 1,661,311,730.31 = 1,216,298,513.22 : x
  2. Step 2: Convert to fraction form
    1,220,172,718.11/1,661,311,730.31 = 1,216,298,513.22/x
  3. Step 3: Cross multiply
    1,220,172,718.11x = 1,661,311,730.31 × 1,216,298,513.22
  4. Step 4: Simplify right side
    1,220,172,718.11x = 2,020,650,987,570,998,528
  5. Step 5: Solve for x
    x = 2,020,650,987,570,998,528/1,220,172,718.11
  6. Step 6: Final answer
    x = 1,656,036,852.47

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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.