Home / 146,710,187.20-220,065,280.80-78,685,739.20

Finding the Fourth Proportional to 146,710,187.20, 220,065,280.80 and 78,685,739.20

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Solution

The fourth proportional to 146,710,187.20, 220,065,280.80 and 78,685,739.20 is: 118,028,608.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,710,187.20 : 220,065,280.80 = 78,685,739.20 : x
  2. Step 2: Convert to fraction form
    146,710,187.20/220,065,280.80 = 78,685,739.20/x
  3. Step 3: Cross multiply
    146,710,187.20x = 220,065,280.80 × 78,685,739.20
  4. Step 4: Simplify right side
    146,710,187.20x = 17,315,999,292,003,568
  5. Step 5: Solve for x
    x = 17,315,999,292,003,568/146,710,187.20
  6. Step 6: Final answer
    x = 118,028,608.80

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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.