Home / 387,086,540.40-580,629,810.60-144,717,951.60

Finding the Fourth Proportional to 387,086,540.40, 580,629,810.60 and 144,717,951.60

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Solution

The fourth proportional to 387,086,540.40, 580,629,810.60 and 144,717,951.60 is: 217,076,927.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,086,540.40 : 580,629,810.60 = 144,717,951.60 : x
  2. Step 2: Convert to fraction form
    387,086,540.40/580,629,810.60 = 144,717,951.60/x
  3. Step 3: Cross multiply
    387,086,540.40x = 580,629,810.60 × 144,717,951.60
  4. Step 4: Simplify right side
    387,086,540.40x = 84,027,556,827,927,968
  5. Step 5: Solve for x
    x = 84,027,556,827,927,968/387,086,540.40
  6. Step 6: Final answer
    x = 217,076,927.40

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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.