Home / 12,318,542.97-16,999,699.50-6,812,288.34

Finding the Fourth Proportional to 12,318,542.97, 16,999,699.50 and 6,812,288.34

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Solution

The fourth proportional to 12,318,542.97, 16,999,699.50 and 6,812,288.34 is: 9,401,018.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,318,542.97 : 16,999,699.50 = 6,812,288.34 : x
  2. Step 2: Convert to fraction form
    12,318,542.97/16,999,699.50 = 6,812,288.34/x
  3. Step 3: Cross multiply
    12,318,542.97x = 16,999,699.50 × 6,812,288.34
  4. Step 4: Simplify right side
    12,318,542.97x = 115,806,854,687,353.83
  5. Step 5: Solve for x
    x = 115,806,854,687,353.83/12,318,542.97
  6. Step 6: Final answer
    x = 9,401,018.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.