Home / 290,331,318.30-435,496,977.45-260,770,076.70

Finding the Fourth Proportional to 290,331,318.30, 435,496,977.45 and 260,770,076.70

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Solution

The fourth proportional to 290,331,318.30, 435,496,977.45 and 260,770,076.70 is: 391,155,115.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,331,318.30 : 435,496,977.45 = 260,770,076.70 : x
  2. Step 2: Convert to fraction form
    290,331,318.30/435,496,977.45 = 260,770,076.70/x
  3. Step 3: Cross multiply
    290,331,318.30x = 435,496,977.45 × 260,770,076.70
  4. Step 4: Simplify right side
    290,331,318.30x = 113,564,580,212,254,656
  5. Step 5: Solve for x
    x = 113,564,580,212,254,656/290,331,318.30
  6. Step 6: Final answer
    x = 391,155,115.05

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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.