Home / 121,606,420.05-167,828,862.09-69,403,265.86

Finding the Fourth Proportional to 121,606,420.05, 167,828,862.09 and 69,403,265.86

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Solution

The fourth proportional to 121,606,420.05, 167,828,862.09 and 69,403,265.86 is: 95,783,356.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,606,420.05 : 167,828,862.09 = 69,403,265.86 : x
  2. Step 2: Convert to fraction form
    121,606,420.05/167,828,862.09 = 69,403,265.86/x
  3. Step 3: Cross multiply
    121,606,420.05x = 167,828,862.09 × 69,403,265.86
  4. Step 4: Simplify right side
    121,606,420.05x = 11,647,871,134,613,546
  5. Step 5: Solve for x
    x = 11,647,871,134,613,546/121,606,420.05
  6. Step 6: Final answer
    x = 95,783,356.91

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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.