Home / 20,130,862.80-30,171,112.92-15,854,140.56

Finding the Fourth Proportional to 20,130,862.80, 30,171,112.92 and 15,854,140.56

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Solution

The fourth proportional to 20,130,862.80, 30,171,112.92 and 15,854,140.56 is: 23,761,379.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,130,862.80 : 30,171,112.92 = 15,854,140.56 : x
  2. Step 2: Convert to fraction form
    20,130,862.80/30,171,112.92 = 15,854,140.56/x
  3. Step 3: Cross multiply
    20,130,862.80x = 30,171,112.92 × 15,854,140.56
  4. Step 4: Simplify right side
    20,130,862.80x = 478,337,065,085,312.06
  5. Step 5: Solve for x
    x = 478,337,065,085,312.06/20,130,862.80
  6. Step 6: Final answer
    x = 23,761,379.22

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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.