Home / 121,085,459.20-181,628,188.80-84,734,894.80

Finding the Fourth Proportional to 121,085,459.20, 181,628,188.80 and 84,734,894.80

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Solution

The fourth proportional to 121,085,459.20, 181,628,188.80 and 84,734,894.80 is: 127,102,342.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,085,459.20 : 181,628,188.80 = 84,734,894.80 : x
  2. Step 2: Convert to fraction form
    121,085,459.20/181,628,188.80 = 84,734,894.80/x
  3. Step 3: Cross multiply
    121,085,459.20x = 181,628,188.80 × 84,734,894.80
  4. Step 4: Simplify right side
    121,085,459.20x = 15,390,245,470,682,538
  5. Step 5: Solve for x
    x = 15,390,245,470,682,538/121,085,459.20
  6. Step 6: Final answer
    x = 127,102,342.20

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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.