Home / 209,375,639.73-288,940,521.02-115,298,535.06

Finding the Fourth Proportional to 209,375,639.73, 288,940,521.02 and 115,298,535.06

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Solution

The fourth proportional to 209,375,639.73, 288,940,521.02 and 115,298,535.06 is: 159,113,155.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,375,639.73 : 288,940,521.02 = 115,298,535.06 : x
  2. Step 2: Convert to fraction form
    209,375,639.73/288,940,521.02 = 115,298,535.06/x
  3. Step 3: Cross multiply
    209,375,639.73x = 288,940,521.02 × 115,298,535.06
  4. Step 4: Simplify right side
    209,375,639.73x = 33,314,418,792,502,644
  5. Step 5: Solve for x
    x = 33,314,418,792,502,644/209,375,639.73
  6. Step 6: Final answer
    x = 159,113,155.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.