Home / 20,160,982,825.20-30,215,646,205.20-17,939,772,021.60

Finding the Fourth Proportional to 20,160,982,825.20, 30,215,646,205.20 and 17,939,772,021.60

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Solution

The fourth proportional to 20,160,982,825.20, 30,215,646,205.20 and 17,939,772,021.60 is: 26,886,675,570.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160,982,825.20 : 30,215,646,205.20 = 17,939,772,021.60 : x
  2. Step 2: Convert to fraction form
    20,160,982,825.20/30,215,646,205.20 = 17,939,772,021.60/x
  3. Step 3: Cross multiply
    20,160,982,825.20x = 30,215,646,205.20 × 17,939,772,021.60
  4. Step 4: Simplify right side
    20,160,982,825.20x = 542,061,804,406,611,116,032
  5. Step 5: Solve for x
    x = 542,061,804,406,611,116,032/20,160,982,825.20
  6. Step 6: Final answer
    x = 26,886,675,570.65

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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.