Home / 221,209,668.12-331,784,966.73-65,760,558.51

Finding the Fourth Proportional to 221,209,668.12, 331,784,966.73 and 65,760,558.51

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Solution

The fourth proportional to 221,209,668.12, 331,784,966.73 and 65,760,558.51 is: 98,632,057.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,209,668.12 : 331,784,966.73 = 65,760,558.51 : x
  2. Step 2: Convert to fraction form
    221,209,668.12/331,784,966.73 = 65,760,558.51/x
  3. Step 3: Cross multiply
    221,209,668.12x = 331,784,966.73 × 65,760,558.51
  4. Step 4: Simplify right side
    221,209,668.12x = 21,818,364,717,386,568
  5. Step 5: Solve for x
    x = 21,818,364,717,386,568/221,209,668.12
  6. Step 6: Final answer
    x = 98,632,057.55

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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.