Home / 208,619,856,400.80-312,929,784,601.20-208,619,856,400.80

Finding the Fourth Proportional to 208,619,856,400.80, 312,929,784,601.20 and 208,619,856,400.80

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Solution

The fourth proportional to 208,619,856,400.80, 312,929,784,601.20 and 208,619,856,400.80 is: 312,929,784,601.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,619,856,400.80 : 312,929,784,601.20 = 208,619,856,400.80 : x
  2. Step 2: Convert to fraction form
    208,619,856,400.80/312,929,784,601.20 = 208,619,856,400.80/x
  3. Step 3: Cross multiply
    208,619,856,400.80x = 312,929,784,601.20 × 208,619,856,400.80
  4. Step 4: Simplify right side
    208,619,856,400.80x = 65,283,366,727,035,614,396,416
  5. Step 5: Solve for x
    x = 65,283,366,727,035,614,396,416/208,619,856,400.80
  6. Step 6: Final answer
    x = 312,929,784,601.20

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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.