Home / 193,539,739.20-290,309,608.80-125,011,406.40

Finding the Fourth Proportional to 193,539,739.20, 290,309,608.80 and 125,011,406.40

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Solution

The fourth proportional to 193,539,739.20, 290,309,608.80 and 125,011,406.40 is: 187,517,109.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,539,739.20 : 290,309,608.80 = 125,011,406.40 : x
  2. Step 2: Convert to fraction form
    193,539,739.20/290,309,608.80 = 125,011,406.40/x
  3. Step 3: Cross multiply
    193,539,739.20x = 290,309,608.80 × 125,011,406.40
  4. Step 4: Simplify right side
    193,539,739.20x = 36,292,012,487,521,816
  5. Step 5: Solve for x
    x = 36,292,012,487,521,816/193,539,739.20
  6. Step 6: Final answer
    x = 187,517,109.60

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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.