Home / 86,961,662.10-130,694,435.55-85,450,007.70

Finding the Fourth Proportional to 86,961,662.10, 130,694,435.55 and 85,450,007.70

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Solution

The fourth proportional to 86,961,662.10, 130,694,435.55 and 85,450,007.70 is: 128,422,574.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,961,662.10 : 130,694,435.55 = 85,450,007.70 : x
  2. Step 2: Convert to fraction form
    86,961,662.10/130,694,435.55 = 85,450,007.70/x
  3. Step 3: Cross multiply
    86,961,662.10x = 130,694,435.55 × 85,450,007.70
  4. Step 4: Simplify right side
    86,961,662.10x = 11,167,840,524,094,654
  5. Step 5: Solve for x
    x = 11,167,840,524,094,654/86,961,662.10
  6. Step 6: Final answer
    x = 128,422,574.44

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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.