Home / 21,047,550.80-29,029,615.16-18,112,315.20

Finding the Fourth Proportional to 21,047,550.80, 29,029,615.16 and 18,112,315.20

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Solution

The fourth proportional to 21,047,550.80, 29,029,615.16 and 18,112,315.20 is: 24,981,222.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,047,550.80 : 29,029,615.16 = 18,112,315.20 : x
  2. Step 2: Convert to fraction form
    21,047,550.80/29,029,615.16 = 18,112,315.20/x
  3. Step 3: Cross multiply
    21,047,550.80x = 29,029,615.16 × 18,112,315.20
  4. Step 4: Simplify right side
    21,047,550.80x = 525,793,539,912,618.44
  5. Step 5: Solve for x
    x = 525,793,539,912,618.44/21,047,550.80
  6. Step 6: Final answer
    x = 24,981,222.04

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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.