Home / 490,928,817.60-736,312,861.44-199,784,180.16

Finding the Fourth Proportional to 490,928,817.60, 736,312,861.44 and 199,784,180.16

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Solution

The fourth proportional to 490,928,817.60, 736,312,861.44 and 199,784,180.16 is: 299,643,565.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,928,817.60 : 736,312,861.44 = 199,784,180.16 : x
  2. Step 2: Convert to fraction form
    490,928,817.60/736,312,861.44 = 199,784,180.16/x
  3. Step 3: Cross multiply
    490,928,817.60x = 736,312,861.44 × 199,784,180.16
  4. Step 4: Simplify right side
    490,928,817.60x = 147,103,661,364,054,080
  5. Step 5: Solve for x
    x = 147,103,661,364,054,080/490,928,817.60
  6. Step 6: Final answer
    x = 299,643,565.61

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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.