Home / 199,629,231.20-299,421,728.40-163,664,712.80

Finding the Fourth Proportional to 199,629,231.20, 299,421,728.40 and 163,664,712.80

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Solution

The fourth proportional to 199,629,231.20, 299,421,728.40 and 163,664,712.80 is: 245,478,935.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,629,231.20 : 299,421,728.40 = 163,664,712.80 : x
  2. Step 2: Convert to fraction form
    199,629,231.20/299,421,728.40 = 163,664,712.80/x
  3. Step 3: Cross multiply
    199,629,231.20x = 299,421,728.40 × 163,664,712.80
  4. Step 4: Simplify right side
    199,629,231.20x = 49,004,771,184,665,600
  5. Step 5: Solve for x
    x = 49,004,771,184,665,600/199,629,231.20
  6. Step 6: Final answer
    x = 245,478,935.58

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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.