Home / 121,128,081.30-181,715,741.55-52,040,751.30

Finding the Fourth Proportional to 121,128,081.30, 181,715,741.55 and 52,040,751.30

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Solution

The fourth proportional to 121,128,081.30, 181,715,741.55 and 52,040,751.30 is: 78,071,274.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,128,081.30 : 181,715,741.55 = 52,040,751.30 : x
  2. Step 2: Convert to fraction form
    121,128,081.30/181,715,741.55 = 52,040,751.30/x
  3. Step 3: Cross multiply
    121,128,081.30x = 181,715,741.55 × 52,040,751.30
  4. Step 4: Simplify right side
    121,128,081.30x = 9,456,623,713,298,626
  5. Step 5: Solve for x
    x = 9,456,623,713,298,626/121,128,081.30
  6. Step 6: Final answer
    x = 78,071,274.74

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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.