Home / 30,542,220.59-42,161,851.01-18,156,323.75

Finding the Fourth Proportional to 30,542,220.59, 42,161,851.01 and 18,156,323.75

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Solution

The fourth proportional to 30,542,220.59, 42,161,851.01 and 18,156,323.75 is: 25,063,803.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,542,220.59 : 42,161,851.01 = 18,156,323.75 : x
  2. Step 2: Convert to fraction form
    30,542,220.59/42,161,851.01 = 18,156,323.75/x
  3. Step 3: Cross multiply
    30,542,220.59x = 42,161,851.01 × 18,156,323.75
  4. Step 4: Simplify right side
    30,542,220.59x = 765,504,216,671,406.12
  5. Step 5: Solve for x
    x = 765,504,216,671,406.12/30,542,220.59
  6. Step 6: Final answer
    x = 25,063,803.55

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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.