Home / 490,077,318.40-735,115,977.60-379,112,437.60

Finding the Fourth Proportional to 490,077,318.40, 735,115,977.60 and 379,112,437.60

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Solution

The fourth proportional to 490,077,318.40, 735,115,977.60 and 379,112,437.60 is: 568,668,656.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,077,318.40 : 735,115,977.60 = 379,112,437.60 : x
  2. Step 2: Convert to fraction form
    490,077,318.40/735,115,977.60 = 379,112,437.60/x
  3. Step 3: Cross multiply
    490,077,318.40x = 735,115,977.60 × 379,112,437.60
  4. Step 4: Simplify right side
    490,077,318.40x = 278,691,610,186,643,040
  5. Step 5: Solve for x
    x = 278,691,610,186,643,040/490,077,318.40
  6. Step 6: Final answer
    x = 568,668,656.40

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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.