Home / 199,849,619.20-300,278,313.60-127,101,251.20

Finding the Fourth Proportional to 199,849,619.20, 300,278,313.60 and 127,101,251.20

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Solution

The fourth proportional to 199,849,619.20, 300,278,313.60 and 127,101,251.20 is: 190,972,339.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,849,619.20 : 300,278,313.60 = 127,101,251.20 : x
  2. Step 2: Convert to fraction form
    199,849,619.20/300,278,313.60 = 127,101,251.20/x
  3. Step 3: Cross multiply
    199,849,619.20x = 300,278,313.60 × 127,101,251.20
  4. Step 4: Simplify right side
    199,849,619.20x = 38,165,749,366,785,984
  5. Step 5: Solve for x
    x = 38,165,749,366,785,984/199,849,619.20
  6. Step 6: Final answer
    x = 190,972,339.70

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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.