Home / 425,348,520.30-638,022,780.45-166,477,704.30

Finding the Fourth Proportional to 425,348,520.30, 638,022,780.45 and 166,477,704.30

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Solution

The fourth proportional to 425,348,520.30, 638,022,780.45 and 166,477,704.30 is: 249,716,556.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,348,520.30 : 638,022,780.45 = 166,477,704.30 : x
  2. Step 2: Convert to fraction form
    425,348,520.30/638,022,780.45 = 166,477,704.30/x
  3. Step 3: Cross multiply
    425,348,520.30x = 638,022,780.45 × 166,477,704.30
  4. Step 4: Simplify right side
    425,348,520.30x = 106,216,567,780,418,944
  5. Step 5: Solve for x
    x = 106,216,567,780,418,944/425,348,520.30
  6. Step 6: Final answer
    x = 249,716,556.45

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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.