Home / 146,708,443.20-220,062,664.80-78,683,995.20

Finding the Fourth Proportional to 146,708,443.20, 220,062,664.80 and 78,683,995.20

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Solution

The fourth proportional to 146,708,443.20, 220,062,664.80 and 78,683,995.20 is: 118,025,992.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,708,443.20 : 220,062,664.80 = 78,683,995.20 : x
  2. Step 2: Convert to fraction form
    146,708,443.20/220,062,664.80 = 78,683,995.20/x
  3. Step 3: Cross multiply
    146,708,443.20x = 220,062,664.80 × 78,683,995.20
  4. Step 4: Simplify right side
    146,708,443.20x = 17,315,409,660,822,410
  5. Step 5: Solve for x
    x = 17,315,409,660,822,410/146,708,443.20
  6. Step 6: Final answer
    x = 118,025,992.80

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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.