Home / 144,945,789.18-217,144,356.21-85,680,739.14

Finding the Fourth Proportional to 144,945,789.18, 217,144,356.21 and 85,680,739.14

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Solution

The fourth proportional to 144,945,789.18, 217,144,356.21 and 85,680,739.14 is: 128,358,947.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,945,789.18 : 217,144,356.21 = 85,680,739.14 : x
  2. Step 2: Convert to fraction form
    144,945,789.18/217,144,356.21 = 85,680,739.14/x
  3. Step 3: Cross multiply
    144,945,789.18x = 217,144,356.21 × 85,680,739.14
  4. Step 4: Simplify right side
    144,945,789.18x = 18,605,088,940,152,248
  5. Step 5: Solve for x
    x = 18,605,088,940,152,248/144,945,789.18
  6. Step 6: Final answer
    x = 128,358,947.48

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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.