Home / 808,971,000.70-1,213,456,501.05-800,908,843.90

Finding the Fourth Proportional to 808,971,000.70, 1,213,456,501.05 and 800,908,843.90

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Solution

The fourth proportional to 808,971,000.70, 1,213,456,501.05 and 800,908,843.90 is: 1,201,363,265.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,971,000.70 : 1,213,456,501.05 = 800,908,843.90 : x
  2. Step 2: Convert to fraction form
    808,971,000.70/1,213,456,501.05 = 800,908,843.90/x
  3. Step 3: Cross multiply
    808,971,000.70x = 1,213,456,501.05 × 800,908,843.90
  4. Step 4: Simplify right side
    808,971,000.70x = 971,868,043,378,894,592
  5. Step 5: Solve for x
    x = 971,868,043,378,894,592/808,971,000.70
  6. Step 6: Final answer
    x = 1,201,363,265.85

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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.