Home / 123,221,857,370.78-170,046,034,204.85-69,028,787,479.32

Finding the Fourth Proportional to 123,221,857,370.78, 170,046,034,204.85 and 69,028,787,479.32

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Solution

The fourth proportional to 123,221,857,370.78, 170,046,034,204.85 and 69,028,787,479.32 is: 95,259,654,474.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,221,857,370.78 : 170,046,034,204.85 = 69,028,787,479.32 : x
  2. Step 2: Convert to fraction form
    123,221,857,370.78/170,046,034,204.85 = 69,028,787,479.32/x
  3. Step 3: Cross multiply
    123,221,857,370.78x = 170,046,034,204.85 × 69,028,787,479.32
  4. Step 4: Simplify right side
    123,221,857,370.78x = 11,738,071,556,826,920,386,560
  5. Step 5: Solve for x
    x = 11,738,071,556,826,920,386,560/123,221,857,370.78
  6. Step 6: Final answer
    x = 95,259,654,474.34

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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.