Home / 18,969,943.12-28,459,441.53-6,190,471.60

Finding the Fourth Proportional to 18,969,943.12, 28,459,441.53 and 6,190,471.60

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Solution

The fourth proportional to 18,969,943.12, 28,459,441.53 and 6,190,471.60 is: 9,287,184.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,969,943.12 : 28,459,441.53 = 6,190,471.60 : x
  2. Step 2: Convert to fraction form
    18,969,943.12/28,459,441.53 = 6,190,471.60/x
  3. Step 3: Cross multiply
    18,969,943.12x = 28,459,441.53 × 6,190,471.60
  4. Step 4: Simplify right side
    18,969,943.12x = 176,177,364,543,325.53
  5. Step 5: Solve for x
    x = 176,177,364,543,325.53/18,969,943.12
  6. Step 6: Final answer
    x = 9,287,184.65

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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.