Home / 207,678,990.88-311,427,604.32-98,535,288.16

Finding the Fourth Proportional to 207,678,990.88, 311,427,604.32 and 98,535,288.16

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Solution

The fourth proportional to 207,678,990.88, 311,427,604.32 and 98,535,288.16 is: 147,759,812.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,678,990.88 : 311,427,604.32 = 98,535,288.16 : x
  2. Step 2: Convert to fraction form
    207,678,990.88/311,427,604.32 = 98,535,288.16/x
  3. Step 3: Cross multiply
    207,678,990.88x = 311,427,604.32 × 98,535,288.16
  4. Step 4: Simplify right side
    207,678,990.88x = 30,686,608,732,649,660
  5. Step 5: Solve for x
    x = 30,686,608,732,649,660/207,678,990.88
  6. Step 6: Final answer
    x = 147,759,812.40

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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.