Home / 19,180,646.27-28,789,158.81-11,871,998.01

Finding the Fourth Proportional to 19,180,646.27, 28,789,158.81 and 11,871,998.01

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Solution

The fourth proportional to 19,180,646.27, 28,789,158.81 and 11,871,998.01 is: 17,819,255.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,180,646.27 : 28,789,158.81 = 11,871,998.01 : x
  2. Step 2: Convert to fraction form
    19,180,646.27/28,789,158.81 = 11,871,998.01/x
  3. Step 3: Cross multiply
    19,180,646.27x = 28,789,158.81 × 11,871,998.01
  4. Step 4: Simplify right side
    19,180,646.27x = 341,784,835,971,686.50
  5. Step 5: Solve for x
    x = 341,784,835,971,686.50/19,180,646.27
  6. Step 6: Final answer
    x = 17,819,255.47

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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.