Home / 479,119,939.20-718,679,908.80-192,111,580.80

Finding the Fourth Proportional to 479,119,939.20, 718,679,908.80 and 192,111,580.80

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Solution

The fourth proportional to 479,119,939.20, 718,679,908.80 and 192,111,580.80 is: 288,167,371.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,119,939.20 : 718,679,908.80 = 192,111,580.80 : x
  2. Step 2: Convert to fraction form
    479,119,939.20/718,679,908.80 = 192,111,580.80/x
  3. Step 3: Cross multiply
    479,119,939.20x = 718,679,908.80 × 192,111,580.80
  4. Step 4: Simplify right side
    479,119,939.20x = 138,066,733,368,767,824
  5. Step 5: Solve for x
    x = 138,066,733,368,767,824/479,119,939.20
  6. Step 6: Final answer
    x = 288,167,371.20

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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.