Home / 75,543,618.80-113,315,428.20-30,137,999.60

Finding the Fourth Proportional to 75,543,618.80, 113,315,428.20 and 30,137,999.60

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Solution

The fourth proportional to 75,543,618.80, 113,315,428.20 and 30,137,999.60 is: 45,206,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,543,618.80 : 113,315,428.20 = 30,137,999.60 : x
  2. Step 2: Convert to fraction form
    75,543,618.80/113,315,428.20 = 30,137,999.60/x
  3. Step 3: Cross multiply
    75,543,618.80x = 113,315,428.20 × 30,137,999.60
  4. Step 4: Simplify right side
    75,543,618.80x = 3,415,100,329,765,429
  5. Step 5: Solve for x
    x = 3,415,100,329,765,429/75,543,618.80
  6. Step 6: Final answer
    x = 45,206,999.40

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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.