Home / 68,316,579.70-102,474,869.55-19,796,016.40

Finding the Fourth Proportional to 68,316,579.70, 102,474,869.55 and 19,796,016.40

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Solution

The fourth proportional to 68,316,579.70, 102,474,869.55 and 19,796,016.40 is: 29,694,024.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,316,579.70 : 102,474,869.55 = 19,796,016.40 : x
  2. Step 2: Convert to fraction form
    68,316,579.70/102,474,869.55 = 19,796,016.40/x
  3. Step 3: Cross multiply
    68,316,579.70x = 102,474,869.55 × 19,796,016.40
  4. Step 4: Simplify right side
    68,316,579.70x = 2,028,594,198,199,660.50
  5. Step 5: Solve for x
    x = 2,028,594,198,199,660.50/68,316,579.70
  6. Step 6: Final answer
    x = 29,694,024.60

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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.