Home / 207,438,476.80-311,157,715.20-104,126,346.40

Finding the Fourth Proportional to 207,438,476.80, 311,157,715.20 and 104,126,346.40

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Solution

The fourth proportional to 207,438,476.80, 311,157,715.20 and 104,126,346.40 is: 156,189,519.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,438,476.80 : 311,157,715.20 = 104,126,346.40 : x
  2. Step 2: Convert to fraction form
    207,438,476.80/311,157,715.20 = 104,126,346.40/x
  3. Step 3: Cross multiply
    207,438,476.80x = 311,157,715.20 × 104,126,346.40
  4. Step 4: Simplify right side
    207,438,476.80x = 32,399,716,037,947,744
  5. Step 5: Solve for x
    x = 32,399,716,037,947,744/207,438,476.80
  6. Step 6: Final answer
    x = 156,189,519.60

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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.