Home / 20,155,418,880.80-30,233,128,321.20-18,220,501,248.80

Finding the Fourth Proportional to 20,155,418,880.80, 30,233,128,321.20 and 18,220,501,248.80

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Solution

The fourth proportional to 20,155,418,880.80, 30,233,128,321.20 and 18,220,501,248.80 is: 27,330,751,873.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155,418,880.80 : 30,233,128,321.20 = 18,220,501,248.80 : x
  2. Step 2: Convert to fraction form
    20,155,418,880.80/30,233,128,321.20 = 18,220,501,248.80/x
  3. Step 3: Cross multiply
    20,155,418,880.80x = 30,233,128,321.20 × 18,220,501,248.80
  4. Step 4: Simplify right side
    20,155,418,880.80x = 550,862,752,331,555,209,216
  5. Step 5: Solve for x
    x = 550,862,752,331,555,209,216/20,155,418,880.80
  6. Step 6: Final answer
    x = 27,330,751,873.20

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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.