Home / 39,727,719,078.26-54,823,852,009.88-21,663,189,649.22

Finding the Fourth Proportional to 39,727,719,078.26, 54,823,852,009.88 and 21,663,189,649.22

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Solution

The fourth proportional to 39,727,719,078.26, 54,823,852,009.88 and 21,663,189,649.22 is: 29,894,983,425.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,727,719,078.26 : 54,823,852,009.88 = 21,663,189,649.22 : x
  2. Step 2: Convert to fraction form
    39,727,719,078.26/54,823,852,009.88 = 21,663,189,649.22/x
  3. Step 3: Cross multiply
    39,727,719,078.26x = 54,823,852,009.88 × 21,663,189,649.22
  4. Step 4: Simplify right side
    39,727,719,078.26x = 1,187,659,503,390,419,058,688
  5. Step 5: Solve for x
    x = 1,187,659,503,390,419,058,688/39,727,719,078.26
  6. Step 6: Final answer
    x = 29,894,983,425.83

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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.