Home / 201,625,109.12-278,231,856.12-111,095,790.32

Finding the Fourth Proportional to 201,625,109.12, 278,231,856.12 and 111,095,790.32

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Solution

The fourth proportional to 201,625,109.12, 278,231,856.12 and 111,095,790.32 is: 153,306,242.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,625,109.12 : 278,231,856.12 = 111,095,790.32 : x
  2. Step 2: Convert to fraction form
    201,625,109.12/278,231,856.12 = 111,095,790.32/x
  3. Step 3: Cross multiply
    201,625,109.12x = 278,231,856.12 × 111,095,790.32
  4. Step 4: Simplify right side
    201,625,109.12x = 30,910,387,948,547,512
  5. Step 5: Solve for x
    x = 30,910,387,948,547,512/201,625,109.12
  6. Step 6: Final answer
    x = 153,306,242.87

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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.