Home / 121,128,718.80-181,716,697.80-52,041,388.80

Finding the Fourth Proportional to 121,128,718.80, 181,716,697.80 and 52,041,388.80

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Solution

The fourth proportional to 121,128,718.80, 181,716,697.80 and 52,041,388.80 is: 78,072,231.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,128,718.80 : 181,716,697.80 = 52,041,388.80 : x
  2. Step 2: Convert to fraction form
    121,128,718.80/181,716,697.80 = 52,041,388.80/x
  3. Step 3: Cross multiply
    121,128,718.80x = 181,716,697.80 × 52,041,388.80
  4. Step 4: Simplify right side
    121,128,718.80x = 9,456,789,321,661,904
  5. Step 5: Solve for x
    x = 9,456,789,321,661,904/121,128,718.80
  6. Step 6: Final answer
    x = 78,072,231.06

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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.