Home / 660,741,402.85-991,548,743.96-311,087,465.07

Finding the Fourth Proportional to 660,741,402.85, 991,548,743.96 and 311,087,465.07

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Solution

The fourth proportional to 660,741,402.85, 991,548,743.96 and 311,087,465.07 is: 466,836,774.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,741,402.85 : 991,548,743.96 = 311,087,465.07 : x
  2. Step 2: Convert to fraction form
    660,741,402.85/991,548,743.96 = 311,087,465.07/x
  3. Step 3: Cross multiply
    660,741,402.85x = 991,548,743.96 × 311,087,465.07
  4. Step 4: Simplify right side
    660,741,402.85x = 308,458,385,245,345,728
  5. Step 5: Solve for x
    x = 308,458,385,245,345,728/660,741,402.85
  6. Step 6: Final answer
    x = 466,836,774.44

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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.