Home / 208,640,403.60-312,946,608.60-55,283,168.40

Finding the Fourth Proportional to 208,640,403.60, 312,946,608.60 and 55,283,168.40

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Solution

The fourth proportional to 208,640,403.60, 312,946,608.60 and 55,283,168.40 is: 82,921,043.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,640,403.60 : 312,946,608.60 = 55,283,168.40 : x
  2. Step 2: Convert to fraction form
    208,640,403.60/312,946,608.60 = 55,283,168.40/x
  3. Step 3: Cross multiply
    208,640,403.60x = 312,946,608.60 × 55,283,168.40
  4. Step 4: Simplify right side
    208,640,403.60x = 17,300,680,063,442,690
  5. Step 5: Solve for x
    x = 17,300,680,063,442,690/208,640,403.60
  6. Step 6: Final answer
    x = 82,921,043.89

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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.