Home / 51,221,126.16-76,831,820.46-20,928,989.16

Finding the Fourth Proportional to 51,221,126.16, 76,831,820.46 and 20,928,989.16

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Solution

The fourth proportional to 51,221,126.16, 76,831,820.46 and 20,928,989.16 is: 31,393,537.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,221,126.16 : 76,831,820.46 = 20,928,989.16 : x
  2. Step 2: Convert to fraction form
    51,221,126.16/76,831,820.46 = 20,928,989.16/x
  3. Step 3: Cross multiply
    51,221,126.16x = 76,831,820.46 × 20,928,989.16
  4. Step 4: Simplify right side
    51,221,126.16x = 1,608,012,337,550,406
  5. Step 5: Solve for x
    x = 1,608,012,337,550,406/51,221,126.16
  6. Step 6: Final answer
    x = 31,393,537.36

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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.