Home / 19,201,633.81-28,802,479.87-7,842,082.43

Finding the Fourth Proportional to 19,201,633.81, 28,802,479.87 and 7,842,082.43

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Solution

The fourth proportional to 19,201,633.81, 28,802,479.87 and 7,842,082.43 is: 11,763,135.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,201,633.81 : 28,802,479.87 = 7,842,082.43 : x
  2. Step 2: Convert to fraction form
    19,201,633.81/28,802,479.87 = 7,842,082.43/x
  3. Step 3: Cross multiply
    19,201,633.81x = 28,802,479.87 × 7,842,082.43
  4. Step 4: Simplify right side
    19,201,633.81x = 225,871,421,410,764.50
  5. Step 5: Solve for x
    x = 225,871,421,410,764.50/19,201,633.81
  6. Step 6: Final answer
    x = 11,763,135.56

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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.