Home / 99,858,568.10-137,792,889.30-55,198,507.32

Finding the Fourth Proportional to 99,858,568.10, 137,792,889.30 and 55,198,507.32

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Solution

The fourth proportional to 99,858,568.10, 137,792,889.30 and 55,198,507.32 is: 76,167,343.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,858,568.10 : 137,792,889.30 = 55,198,507.32 : x
  2. Step 2: Convert to fraction form
    99,858,568.10/137,792,889.30 = 55,198,507.32/x
  3. Step 3: Cross multiply
    99,858,568.10x = 137,792,889.30 × 55,198,507.32
  4. Step 4: Simplify right side
    99,858,568.10x = 7,605,961,808,670,000
  5. Step 5: Solve for x
    x = 7,605,961,808,670,000/99,858,568.10
  6. Step 6: Final answer
    x = 76,167,343.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.