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Finding the Fourth Proportional to 866,052,002.10, 1,299,078,003.15 and 804,829,998.90

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Solution

The fourth proportional to 866,052,002.10, 1,299,078,003.15 and 804,829,998.90 is: 1,207,244,998.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,052,002.10 : 1,299,078,003.15 = 804,829,998.90 : x
  2. Step 2: Convert to fraction form
    866,052,002.10/1,299,078,003.15 = 804,829,998.90/x
  3. Step 3: Cross multiply
    866,052,002.10x = 1,299,078,003.15 × 804,829,998.90
  4. Step 4: Simplify right side
    866,052,002.10x = 1,045,536,947,846,228,736
  5. Step 5: Solve for x
    x = 1,045,536,947,846,228,736/866,052,002.10
  6. Step 6: Final answer
    x = 1,207,244,998.35

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1.5x scale

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.