Home / 20,160,982,859.20-30,215,646,256.20-17,939,772,055.60

Finding the Fourth Proportional to 20,160,982,859.20, 30,215,646,256.20 and 17,939,772,055.60

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Solution

The fourth proportional to 20,160,982,859.20, 30,215,646,256.20 and 17,939,772,055.60 is: 26,886,675,621.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160,982,859.20 : 30,215,646,256.20 = 17,939,772,055.60 : x
  2. Step 2: Convert to fraction form
    20,160,982,859.20/30,215,646,256.20 = 17,939,772,055.60/x
  3. Step 3: Cross multiply
    20,160,982,859.20x = 30,215,646,256.20 × 17,939,772,055.60
  4. Step 4: Simplify right side
    20,160,982,859.20x = 542,061,806,348,871,467,008
  5. Step 5: Solve for x
    x = 542,061,806,348,871,467,008/20,160,982,859.20
  6. Step 6: Final answer
    x = 26,886,675,621.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.