Home / 30,760,260.80-42,434,707.02-21,941,661.20

Finding the Fourth Proportional to 30,760,260.80, 42,434,707.02 and 21,941,661.20

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Solution

The fourth proportional to 30,760,260.80, 42,434,707.02 and 21,941,661.20 is: 30,269,183.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,760,260.80 : 42,434,707.02 = 21,941,661.20 : x
  2. Step 2: Convert to fraction form
    30,760,260.80/42,434,707.02 = 21,941,661.20/x
  3. Step 3: Cross multiply
    30,760,260.80x = 42,434,707.02 × 21,941,661.20
  4. Step 4: Simplify right side
    30,760,260.80x = 931,087,964,554,101.62
  5. Step 5: Solve for x
    x = 931,087,964,554,101.62/30,760,260.80
  6. Step 6: Final answer
    x = 30,269,183.04

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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.