Home / 393,296,342.40-589,944,513.60-137,994,710.40

Finding the Fourth Proportional to 393,296,342.40, 589,944,513.60 and 137,994,710.40

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Solution

The fourth proportional to 393,296,342.40, 589,944,513.60 and 137,994,710.40 is: 206,992,065.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,296,342.40 : 589,944,513.60 = 137,994,710.40 : x
  2. Step 2: Convert to fraction form
    393,296,342.40/589,944,513.60 = 137,994,710.40/x
  3. Step 3: Cross multiply
    393,296,342.40x = 589,944,513.60 × 137,994,710.40
  4. Step 4: Simplify right side
    393,296,342.40x = 81,409,222,306,300,864
  5. Step 5: Solve for x
    x = 81,409,222,306,300,864/393,296,342.40
  6. Step 6: Final answer
    x = 206,992,065.60

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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.