Home / 13,120,086.70-19,683,816.45-6,388,720.30

Finding the Fourth Proportional to 13,120,086.70, 19,683,816.45 and 6,388,720.30

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Solution

The fourth proportional to 13,120,086.70, 19,683,816.45 and 6,388,720.30 is: 9,584,875.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120,086.70 : 19,683,816.45 = 6,388,720.30 : x
  2. Step 2: Convert to fraction form
    13,120,086.70/19,683,816.45 = 6,388,720.30/x
  3. Step 3: Cross multiply
    13,120,086.70x = 19,683,816.45 × 6,388,720.30
  4. Step 4: Simplify right side
    13,120,086.70x = 125,754,397,735,588.92
  5. Step 5: Solve for x
    x = 125,754,397,735,588.92/13,120,086.70
  6. Step 6: Final answer
    x = 9,584,875.51

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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.