Home / 207,597,621.80-311,183,856.30-121,291,603.40

Finding the Fourth Proportional to 207,597,621.80, 311,183,856.30 and 121,291,603.40

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Solution

The fourth proportional to 207,597,621.80, 311,183,856.30 and 121,291,603.40 is: 181,813,204.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,597,621.80 : 311,183,856.30 = 121,291,603.40 : x
  2. Step 2: Convert to fraction form
    207,597,621.80/311,183,856.30 = 121,291,603.40/x
  3. Step 3: Cross multiply
    207,597,621.80x = 311,183,856.30 × 121,291,603.40
  4. Step 4: Simplify right side
    207,597,621.80x = 37,743,988,882,822,192
  5. Step 5: Solve for x
    x = 37,743,988,882,822,192/207,597,621.80
  6. Step 6: Final answer
    x = 181,813,204.58

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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.