Home / 38,499,029.92-53,128,674.12-21,095,233.84

Finding the Fourth Proportional to 38,499,029.92, 53,128,674.12 and 21,095,233.84

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Solution

The fourth proportional to 38,499,029.92, 53,128,674.12 and 21,095,233.84 is: 29,111,429.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,499,029.92 : 53,128,674.12 = 21,095,233.84 : x
  2. Step 2: Convert to fraction form
    38,499,029.92/53,128,674.12 = 21,095,233.84/x
  3. Step 3: Cross multiply
    38,499,029.92x = 53,128,674.12 × 21,095,233.84
  4. Step 4: Simplify right side
    38,499,029.92x = 1,120,761,804,170,556.12
  5. Step 5: Solve for x
    x = 1,120,761,804,170,556.12/38,499,029.92
  6. Step 6: Final answer
    x = 29,111,429.73

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Double scale
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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.