Home / 121,303,855.91-181,770,631.21-72,022,664.60

Finding the Fourth Proportional to 121,303,855.91, 181,770,631.21 and 72,022,664.60

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Solution

The fourth proportional to 121,303,855.91, 181,770,631.21 and 72,022,664.60 is: 107,924,064.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,303,855.91 : 181,770,631.21 = 72,022,664.60 : x
  2. Step 2: Convert to fraction form
    121,303,855.91/181,770,631.21 = 72,022,664.60/x
  3. Step 3: Cross multiply
    121,303,855.91x = 181,770,631.21 × 72,022,664.60
  4. Step 4: Simplify right side
    121,303,855.91x = 13,091,605,205,768,122
  5. Step 5: Solve for x
    x = 13,091,605,205,768,122/121,303,855.91
  6. Step 6: Final answer
    x = 107,924,064.80

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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.