Home / 809,028,049.10-1,213,542,073.65-465,042,692.30

Finding the Fourth Proportional to 809,028,049.10, 1,213,542,073.65 and 465,042,692.30

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Solution

The fourth proportional to 809,028,049.10, 1,213,542,073.65 and 465,042,692.30 is: 697,564,038.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,028,049.10 : 1,213,542,073.65 = 465,042,692.30 : x
  2. Step 2: Convert to fraction form
    809,028,049.10/1,213,542,073.65 = 465,042,692.30/x
  3. Step 3: Cross multiply
    809,028,049.10x = 1,213,542,073.65 × 465,042,692.30
  4. Step 4: Simplify right side
    809,028,049.10x = 564,348,873,149,520,960
  5. Step 5: Solve for x
    x = 564,348,873,149,520,960/809,028,049.10
  6. Step 6: Final answer
    x = 697,564,038.45

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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.