Home / 121,418,982.60-182,128,473.90-30,542,571.60

Finding the Fourth Proportional to 121,418,982.60, 182,128,473.90 and 30,542,571.60

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Solution

The fourth proportional to 121,418,982.60, 182,128,473.90 and 30,542,571.60 is: 45,813,857.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,418,982.60 : 182,128,473.90 = 30,542,571.60 : x
  2. Step 2: Convert to fraction form
    121,418,982.60/182,128,473.90 = 30,542,571.60/x
  3. Step 3: Cross multiply
    121,418,982.60x = 182,128,473.90 × 30,542,571.60
  4. Step 4: Simplify right side
    121,418,982.60x = 5,562,671,954,489,482
  5. Step 5: Solve for x
    x = 5,562,671,954,489,482/121,418,982.60
  6. Step 6: Final answer
    x = 45,813,857.40

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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.