Home / 121,198,839.30-181,821,878.55-52,111,509.30

Finding the Fourth Proportional to 121,198,839.30, 181,821,878.55 and 52,111,509.30

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Solution

The fourth proportional to 121,198,839.30, 181,821,878.55 and 52,111,509.30 is: 78,177,419.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,198,839.30 : 181,821,878.55 = 52,111,509.30 : x
  2. Step 2: Convert to fraction form
    121,198,839.30/181,821,878.55 = 52,111,509.30/x
  3. Step 3: Cross multiply
    121,198,839.30x = 181,821,878.55 × 52,111,509.30
  4. Step 4: Simplify right side
    121,198,839.30x = 9,475,012,515,001,796
  5. Step 5: Solve for x
    x = 9,475,012,515,001,796/121,198,839.30
  6. Step 6: Final answer
    x = 78,177,419.60

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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.