Home / 387,096,607.20-580,644,910.80-384,409,221.60

Finding the Fourth Proportional to 387,096,607.20, 580,644,910.80 and 384,409,221.60

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Solution

The fourth proportional to 387,096,607.20, 580,644,910.80 and 384,409,221.60 is: 576,613,832.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,096,607.20 : 580,644,910.80 = 384,409,221.60 : x
  2. Step 2: Convert to fraction form
    387,096,607.20/580,644,910.80 = 384,409,221.60/x
  3. Step 3: Cross multiply
    387,096,607.20x = 580,644,910.80 × 384,409,221.60
  4. Step 4: Simplify right side
    387,096,607.20x = 223,205,258,186,629,440
  5. Step 5: Solve for x
    x = 223,205,258,186,629,440/387,096,607.20
  6. Step 6: Final answer
    x = 576,613,832.40

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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.