Home / 121,762,216.38-168,033,509.28-66,757,954.62

Finding the Fourth Proportional to 121,762,216.38, 168,033,509.28 and 66,757,954.62

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Solution

The fourth proportional to 121,762,216.38, 168,033,509.28 and 66,757,954.62 is: 92,126,882.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,762,216.38 : 168,033,509.28 = 66,757,954.62 : x
  2. Step 2: Convert to fraction form
    121,762,216.38/168,033,509.28 = 66,757,954.62/x
  3. Step 3: Cross multiply
    121,762,216.38x = 168,033,509.28 × 66,757,954.62
  4. Step 4: Simplify right side
    121,762,216.38x = 11,217,573,387,153,588
  5. Step 5: Solve for x
    x = 11,217,573,387,153,588/121,762,216.38
  6. Step 6: Final answer
    x = 92,126,882.38

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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.