Home / 660,741,403.85-991,548,745.46-311,087,466.07

Finding the Fourth Proportional to 660,741,403.85, 991,548,745.46 and 311,087,466.07

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Solution

The fourth proportional to 660,741,403.85, 991,548,745.46 and 311,087,466.07 is: 466,836,775.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,741,403.85 : 991,548,745.46 = 311,087,466.07 : x
  2. Step 2: Convert to fraction form
    660,741,403.85/991,548,745.46 = 311,087,466.07/x
  3. Step 3: Cross multiply
    660,741,403.85x = 991,548,745.46 × 311,087,466.07
  4. Step 4: Simplify right side
    660,741,403.85x = 308,458,386,710,038,848
  5. Step 5: Solve for x
    x = 308,458,386,710,038,848/660,741,403.85
  6. Step 6: Final answer
    x = 466,836,775.95

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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.