Home / 211,995,853.06-317,993,890.48-66,440,750.81

Finding the Fourth Proportional to 211,995,853.06, 317,993,890.48 and 66,440,750.81

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Solution

The fourth proportional to 211,995,853.06, 317,993,890.48 and 66,440,750.81 is: 99,661,160.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,995,853.06 : 317,993,890.48 = 66,440,750.81 : x
  2. Step 2: Convert to fraction form
    211,995,853.06/317,993,890.48 = 66,440,750.81/x
  3. Step 3: Cross multiply
    211,995,853.06x = 317,993,890.48 × 66,440,750.81
  4. Step 4: Simplify right side
    211,995,853.06x = 21,127,752,836,151,908
  5. Step 5: Solve for x
    x = 21,127,752,836,151,908/211,995,853.06
  6. Step 6: Final answer
    x = 99,661,160.97

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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.