Home / 121,515,859.50-167,693,460.75-66,510,535.02

Finding the Fourth Proportional to 121,515,859.50, 167,693,460.75 and 66,510,535.02

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Solution

The fourth proportional to 121,515,859.50, 167,693,460.75 and 66,510,535.02 is: 91,785,400.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,515,859.50 : 167,693,460.75 = 66,510,535.02 : x
  2. Step 2: Convert to fraction form
    121,515,859.50/167,693,460.75 = 66,510,535.02/x
  3. Step 3: Cross multiply
    121,515,859.50x = 167,693,460.75 × 66,510,535.02
  4. Step 4: Simplify right side
    121,515,859.50x = 11,153,381,793,837,872
  5. Step 5: Solve for x
    x = 11,153,381,793,837,872/121,515,859.50
  6. Step 6: Final answer
    x = 91,785,400.19

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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.