Home / 64,161,765.60-96,256,645.20-18,719,858.40

Finding the Fourth Proportional to 64,161,765.60, 96,256,645.20 and 18,719,858.40

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Solution

The fourth proportional to 64,161,765.60, 96,256,645.20 and 18,719,858.40 is: 28,083,871.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,161,765.60 : 96,256,645.20 = 18,719,858.40 : x
  2. Step 2: Convert to fraction form
    64,161,765.60/96,256,645.20 = 18,719,858.40/x
  3. Step 3: Cross multiply
    64,161,765.60x = 96,256,645.20 × 18,719,858.40
  4. Step 4: Simplify right side
    64,161,765.60x = 1,801,910,768,203,039.50
  5. Step 5: Solve for x
    x = 1,801,910,768,203,039.50/64,161,765.60
  6. Step 6: Final answer
    x = 28,083,871.31

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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.