Home / 1,425,549,405.40-2,136,623,496.90-1,279,296,842.20

Finding the Fourth Proportional to 1,425,549,405.40, 2,136,623,496.90 and 1,279,296,842.20

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Solution

The fourth proportional to 1,425,549,405.40, 2,136,623,496.90 and 1,279,296,842.20 is: 1,917,419,124.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,549,405.40 : 2,136,623,496.90 = 1,279,296,842.20 : x
  2. Step 2: Convert to fraction form
    1,425,549,405.40/2,136,623,496.90 = 1,279,296,842.20/x
  3. Step 3: Cross multiply
    1,425,549,405.40x = 2,136,623,496.90 × 1,279,296,842.20
  4. Step 4: Simplify right side
    1,425,549,405.40x = 2,733,375,692,554,491,904
  5. Step 5: Solve for x
    x = 2,733,375,692,554,491,904/1,425,549,405.40
  6. Step 6: Final answer
    x = 1,917,419,124.30

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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.