Home / 151,813,475.65-209,502,695.25-82,198,903.69

Finding the Fourth Proportional to 151,813,475.65, 209,502,695.25 and 82,198,903.69

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Solution

The fourth proportional to 151,813,475.65, 209,502,695.25 and 82,198,903.69 is: 113,434,540.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,813,475.65 : 209,502,695.25 = 82,198,903.69 : x
  2. Step 2: Convert to fraction form
    151,813,475.65/209,502,695.25 = 82,198,903.69/x
  3. Step 3: Cross multiply
    151,813,475.65x = 209,502,695.25 × 82,198,903.69
  4. Step 4: Simplify right side
    151,813,475.65x = 17,220,891,868,191,664
  5. Step 5: Solve for x
    x = 17,220,891,868,191,664/151,813,475.65
  6. Step 6: Final answer
    x = 113,434,540.61

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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.