Home / 199,769,919.51-299,678,890.92-70,350,782.79

Finding the Fourth Proportional to 199,769,919.51, 299,678,890.92 and 70,350,782.79

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Solution

The fourth proportional to 199,769,919.51, 299,678,890.92 and 70,350,782.79 is: 105,534,630.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,769,919.51 : 299,678,890.92 = 70,350,782.79 : x
  2. Step 2: Convert to fraction form
    199,769,919.51/299,678,890.92 = 70,350,782.79/x
  3. Step 3: Cross multiply
    199,769,919.51x = 299,678,890.92 × 70,350,782.79
  4. Step 4: Simplify right side
    199,769,919.51x = 21,082,644,561,861,028
  5. Step 5: Solve for x
    x = 21,082,644,561,861,028/199,769,919.51
  6. Step 6: Final answer
    x = 105,534,630.11

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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.