Home / 144,853,145.70-217,279,718.55-76,828,697.70

Finding the Fourth Proportional to 144,853,145.70, 217,279,718.55 and 76,828,697.70

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Solution

The fourth proportional to 144,853,145.70, 217,279,718.55 and 76,828,697.70 is: 115,243,046.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,853,145.70 : 217,279,718.55 = 76,828,697.70 : x
  2. Step 2: Convert to fraction form
    144,853,145.70/217,279,718.55 = 76,828,697.70/x
  3. Step 3: Cross multiply
    144,853,145.70x = 217,279,718.55 × 76,828,697.70
  4. Step 4: Simplify right side
    144,853,145.70x = 16,693,317,812,819,034
  5. Step 5: Solve for x
    x = 16,693,317,812,819,034/144,853,145.70
  6. Step 6: Final answer
    x = 115,243,046.55

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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.