Home / 539,366,679.45-809,086,555.77-189,570,220.35

Finding the Fourth Proportional to 539,366,679.45, 809,086,555.77 and 189,570,220.35

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Solution

The fourth proportional to 539,366,679.45, 809,086,555.77 and 189,570,220.35 is: 284,368,171.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,366,679.45 : 809,086,555.77 = 189,570,220.35 : x
  2. Step 2: Convert to fraction form
    539,366,679.45/809,086,555.77 = 189,570,220.35/x
  3. Step 3: Cross multiply
    539,366,679.45x = 809,086,555.77 × 189,570,220.35
  4. Step 4: Simplify right side
    539,366,679.45x = 153,378,716,659,541,440
  5. Step 5: Solve for x
    x = 153,378,716,659,541,440/539,366,679.45
  6. Step 6: Final answer
    x = 284,368,171.98

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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.