Home / 20,187,418,718.80-30,281,128,078.20-13,575,442,373.20

Finding the Fourth Proportional to 20,187,418,718.80, 30,281,128,078.20 and 13,575,442,373.20

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Solution

The fourth proportional to 20,187,418,718.80, 30,281,128,078.20 and 13,575,442,373.20 is: 20,363,163,559.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,187,418,718.80 : 30,281,128,078.20 = 13,575,442,373.20 : x
  2. Step 2: Convert to fraction form
    20,187,418,718.80/30,281,128,078.20 = 13,575,442,373.20/x
  3. Step 3: Cross multiply
    20,187,418,718.80x = 30,281,128,078.20 × 13,575,442,373.20
  4. Step 4: Simplify right side
    20,187,418,718.80x = 411,079,709,221,092,589,568
  5. Step 5: Solve for x
    x = 411,079,709,221,092,589,568/20,187,418,718.80
  6. Step 6: Final answer
    x = 20,363,163,559.80

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1.5x scale

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.