Home / 448,359,115.20-672,538,672.80-397,340,779.20

Finding the Fourth Proportional to 448,359,115.20, 672,538,672.80 and 397,340,779.20

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Solution

The fourth proportional to 448,359,115.20, 672,538,672.80 and 397,340,779.20 is: 596,011,168.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,359,115.20 : 672,538,672.80 = 397,340,779.20 : x
  2. Step 2: Convert to fraction form
    448,359,115.20/672,538,672.80 = 397,340,779.20/x
  3. Step 3: Cross multiply
    448,359,115.20x = 672,538,672.80 × 397,340,779.20
  4. Step 4: Simplify right side
    448,359,115.20x = 267,227,040,292,485,824
  5. Step 5: Solve for x
    x = 267,227,040,292,485,824/448,359,115.20
  6. Step 6: Final answer
    x = 596,011,168.80

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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.