Home / 202,133,648.25-278,945,275.30-109,314,156.09

Finding the Fourth Proportional to 202,133,648.25, 278,945,275.30 and 109,314,156.09

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Solution

The fourth proportional to 202,133,648.25, 278,945,275.30 and 109,314,156.09 is: 150,853,990.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,133,648.25 : 278,945,275.30 = 109,314,156.09 : x
  2. Step 2: Convert to fraction form
    202,133,648.25/278,945,275.30 = 109,314,156.09/x
  3. Step 3: Cross multiply
    202,133,648.25x = 278,945,275.30 × 109,314,156.09
  4. Step 4: Simplify right side
    202,133,648.25x = 30,492,667,364,712,224
  5. Step 5: Solve for x
    x = 30,492,667,364,712,224/202,133,648.25
  6. Step 6: Final answer
    x = 150,853,990.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.