Home / 1,328,486,996.64-1,991,959,543.61-628,973,260.03

Finding the Fourth Proportional to 1,328,486,996.64, 1,991,959,543.61 and 628,973,260.03

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Solution

The fourth proportional to 1,328,486,996.64, 1,991,959,543.61 and 628,973,260.03 is: 943,094,882.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,486,996.64 : 1,991,959,543.61 = 628,973,260.03 : x
  2. Step 2: Convert to fraction form
    1,328,486,996.64/1,991,959,543.61 = 628,973,260.03/x
  3. Step 3: Cross multiply
    1,328,486,996.64x = 1,991,959,543.61 × 628,973,260.03
  4. Step 4: Simplify right side
    1,328,486,996.64x = 1,252,889,287,992,252,416
  5. Step 5: Solve for x
    x = 1,252,889,287,992,252,416/1,328,486,996.64
  6. Step 6: Final answer
    x = 943,094,882.49

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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.