Home / 387,084,801.60-580,627,202.40-172,093,953.60

Finding the Fourth Proportional to 387,084,801.60, 580,627,202.40 and 172,093,953.60

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Solution

The fourth proportional to 387,084,801.60, 580,627,202.40 and 172,093,953.60 is: 258,140,930.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,084,801.60 : 580,627,202.40 = 172,093,953.60 : x
  2. Step 2: Convert to fraction form
    387,084,801.60/580,627,202.40 = 172,093,953.60/x
  3. Step 3: Cross multiply
    387,084,801.60x = 580,627,202.40 × 172,093,953.60
  4. Step 4: Simplify right side
    387,084,801.60x = 99,922,430,828,723,408
  5. Step 5: Solve for x
    x = 99,922,430,828,723,408/387,084,801.60
  6. Step 6: Final answer
    x = 258,140,930.40

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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.