Home / 387,027,720.40-579,745,318.20-195,659,323.60

Finding the Fourth Proportional to 387,027,720.40, 579,745,318.20 and 195,659,323.60

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Solution

The fourth proportional to 387,027,720.40, 579,745,318.20 and 195,659,323.60 is: 293,086,440.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,027,720.40 : 579,745,318.20 = 195,659,323.60 : x
  2. Step 2: Convert to fraction form
    387,027,720.40/579,745,318.20 = 195,659,323.60/x
  3. Step 3: Cross multiply
    387,027,720.40x = 579,745,318.20 × 195,659,323.60
  4. Step 4: Simplify right side
    387,027,720.40x = 113,432,576,819,278,768
  5. Step 5: Solve for x
    x = 113,432,576,819,278,768/387,027,720.40
  6. Step 6: Final answer
    x = 293,086,440.17

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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.