Home / 800,781,677.70-1,201,172,516.55-628,788,999.30

Finding the Fourth Proportional to 800,781,677.70, 1,201,172,516.55 and 628,788,999.30

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Solution

The fourth proportional to 800,781,677.70, 1,201,172,516.55 and 628,788,999.30 is: 943,183,498.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,781,677.70 : 1,201,172,516.55 = 628,788,999.30 : x
  2. Step 2: Convert to fraction form
    800,781,677.70/1,201,172,516.55 = 628,788,999.30/x
  3. Step 3: Cross multiply
    800,781,677.70x = 1,201,172,516.55 × 628,788,999.30
  4. Step 4: Simplify right side
    800,781,677.70x = 755,284,064,668,137,088
  5. Step 5: Solve for x
    x = 755,284,064,668,137,088/800,781,677.70
  6. Step 6: Final answer
    x = 943,183,498.95

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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.