Home / 209,547,521.75-287,081,407.08-201,693,118.61

Finding the Fourth Proportional to 209,547,521.75, 287,081,407.08 and 201,693,118.61

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Solution

The fourth proportional to 209,547,521.75, 287,081,407.08 and 201,693,118.61 is: 276,320,825.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,547,521.75 : 287,081,407.08 = 201,693,118.61 : x
  2. Step 2: Convert to fraction form
    209,547,521.75/287,081,407.08 = 201,693,118.61/x
  3. Step 3: Cross multiply
    209,547,521.75x = 287,081,407.08 × 201,693,118.61
  4. Step 4: Simplify right side
    209,547,521.75x = 57,902,344,286,972,488
  5. Step 5: Solve for x
    x = 57,902,344,286,972,488/209,547,521.75
  6. Step 6: Final answer
    x = 276,320,825.96

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.