Home / 13,128,190.80-19,688,854.62-3,903,679.20

Finding the Fourth Proportional to 13,128,190.80, 19,688,854.62 and 3,903,679.20

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Solution

The fourth proportional to 13,128,190.80, 19,688,854.62 and 3,903,679.20 is: 5,854,498.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,128,190.80 : 19,688,854.62 = 3,903,679.20 : x
  2. Step 2: Convert to fraction form
    13,128,190.80/19,688,854.62 = 3,903,679.20/x
  3. Step 3: Cross multiply
    13,128,190.80x = 19,688,854.62 × 3,903,679.20
  4. Step 4: Simplify right side
    13,128,190.80x = 76,858,972,251,917.91
  5. Step 5: Solve for x
    x = 76,858,972,251,917.91/13,128,190.80
  6. Step 6: Final answer
    x = 5,854,498.42

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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.