Home / 208,608,276.40-312,787,998.60-127,887,175.60

Finding the Fourth Proportional to 208,608,276.40, 312,787,998.60 and 127,887,175.60

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Solution

The fourth proportional to 208,608,276.40, 312,787,998.60 and 127,887,175.60 is: 191,754,490.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,608,276.40 : 312,787,998.60 = 127,887,175.60 : x
  2. Step 2: Convert to fraction form
    208,608,276.40/312,787,998.60 = 127,887,175.60/x
  3. Step 3: Cross multiply
    208,608,276.40x = 312,787,998.60 × 127,887,175.60
  4. Step 4: Simplify right side
    208,608,276.40x = 40,001,573,702,530,752
  5. Step 5: Solve for x
    x = 40,001,573,702,530,752/208,608,276.40
  6. Step 6: Final answer
    x = 191,754,490.25

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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.