Home / 472,396,039.20-708,342,116.40-199,458,439.20

Finding the Fourth Proportional to 472,396,039.20, 708,342,116.40 and 199,458,439.20

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Solution

The fourth proportional to 472,396,039.20, 708,342,116.40 and 199,458,439.20 is: 299,081,281.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,396,039.20 : 708,342,116.40 = 199,458,439.20 : x
  2. Step 2: Convert to fraction form
    472,396,039.20/708,342,116.40 = 199,458,439.20/x
  3. Step 3: Cross multiply
    472,396,039.20x = 708,342,116.40 × 199,458,439.20
  4. Step 4: Simplify right side
    472,396,039.20x = 141,284,812,956,768,704
  5. Step 5: Solve for x
    x = 141,284,812,956,768,704/472,396,039.20
  6. Step 6: Final answer
    x = 299,081,281.88

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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.