Home / 293,641,902.78-405,236,480.28-168,218,339.20

Finding the Fourth Proportional to 293,641,902.78, 405,236,480.28 and 168,218,339.20

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Solution

The fourth proportional to 293,641,902.78, 405,236,480.28 and 168,218,339.20 is: 232,147,411.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,641,902.78 : 405,236,480.28 = 168,218,339.20 : x
  2. Step 2: Convert to fraction form
    293,641,902.78/405,236,480.28 = 168,218,339.20/x
  3. Step 3: Cross multiply
    293,641,902.78x = 405,236,480.28 × 168,218,339.20
  4. Step 4: Simplify right side
    293,641,902.78x = 68,168,207,693,087,872
  5. Step 5: Solve for x
    x = 68,168,207,693,087,872/293,641,902.78
  6. Step 6: Final answer
    x = 232,147,411.69

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1.5x scale

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.