Home / 121,412,673.52-167,604,206.28-77,418,806.56

Finding the Fourth Proportional to 121,412,673.52, 167,604,206.28 and 77,418,806.56

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Solution

The fourth proportional to 121,412,673.52, 167,604,206.28 and 77,418,806.56 is: 106,872,843.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,412,673.52 : 167,604,206.28 = 77,418,806.56 : x
  2. Step 2: Convert to fraction form
    121,412,673.52/167,604,206.28 = 77,418,806.56/x
  3. Step 3: Cross multiply
    121,412,673.52x = 167,604,206.28 × 77,418,806.56
  4. Step 4: Simplify right side
    121,412,673.52x = 12,975,717,624,633,658
  5. Step 5: Solve for x
    x = 12,975,717,624,633,658/121,412,673.52
  6. Step 6: Final answer
    x = 106,872,843.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.