Home / 12,820,420.80-19,230,631.20-3,844,972.80

Finding the Fourth Proportional to 12,820,420.80, 19,230,631.20 and 3,844,972.80

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Solution

The fourth proportional to 12,820,420.80, 19,230,631.20 and 3,844,972.80 is: 5,767,459.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,820,420.80 : 19,230,631.20 = 3,844,972.80 : x
  2. Step 2: Convert to fraction form
    12,820,420.80/19,230,631.20 = 3,844,972.80/x
  3. Step 3: Cross multiply
    12,820,420.80x = 19,230,631.20 × 3,844,972.80
  4. Step 4: Simplify right side
    12,820,420.80x = 73,941,253,890,831.36
  5. Step 5: Solve for x
    x = 73,941,253,890,831.36/12,820,420.80
  6. Step 6: Final answer
    x = 5,767,459.20

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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.