Home / 154,066,749-231,126,105.06-51,806,478.12

Finding the Fourth Proportional to 154,066,749, 231,126,105.06 and 51,806,478.12

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Solution

The fourth proportional to 154,066,749, 231,126,105.06 and 51,806,478.12 is: 77,718,453.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,066,749 : 231,126,105.06 = 51,806,478.12 : x
  2. Step 2: Convert to fraction form
    154,066,749/231,126,105.06 = 51,806,478.12/x
  3. Step 3: Cross multiply
    154,066,749x = 231,126,105.06 × 51,806,478.12
  4. Step 4: Simplify right side
    154,066,749x = 11,973,829,504,751,710
  5. Step 5: Solve for x
    x = 11,973,829,504,751,710/154,066,749
  6. Step 6: Final answer
    x = 77,718,453.74

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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.