Home / 689,620,008.40-1,034,933,897.40-485,546,664.40

Finding the Fourth Proportional to 689,620,008.40, 1,034,933,897.40 and 485,546,664.40

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Solution

The fourth proportional to 689,620,008.40, 1,034,933,897.40 and 485,546,664.40 is: 728,674,771.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,620,008.40 : 1,034,933,897.40 = 485,546,664.40 : x
  2. Step 2: Convert to fraction form
    689,620,008.40/1,034,933,897.40 = 485,546,664.40/x
  3. Step 3: Cross multiply
    689,620,008.40x = 1,034,933,897.40 × 485,546,664.40
  4. Step 4: Simplify right side
    689,620,008.40x = 502,508,701,757,061,824
  5. Step 5: Solve for x
    x = 502,508,701,757,061,824/689,620,008.40
  6. Step 6: Final answer
    x = 728,674,771.09

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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.