Home / 68,864,405.56-103,310,230.08-19,680,700.12

Finding the Fourth Proportional to 68,864,405.56, 103,310,230.08 and 19,680,700.12

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Solution

The fourth proportional to 68,864,405.56, 103,310,230.08 and 19,680,700.12 is: 29,524,943.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,864,405.56 : 103,310,230.08 = 19,680,700.12 : x
  2. Step 2: Convert to fraction form
    68,864,405.56/103,310,230.08 = 19,680,700.12/x
  3. Step 3: Cross multiply
    68,864,405.56x = 103,310,230.08 × 19,680,700.12
  4. Step 4: Simplify right side
    68,864,405.56x = 2,033,217,657,532,683.75
  5. Step 5: Solve for x
    x = 2,033,217,657,532,683.75/68,864,405.56
  6. Step 6: Final answer
    x = 29,524,943.13

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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.