Home / 12,318,529.15-16,999,680.32-6,812,274.44

Finding the Fourth Proportional to 12,318,529.15, 16,999,680.32 and 6,812,274.44

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Solution

The fourth proportional to 12,318,529.15, 16,999,680.32 and 6,812,274.44 is: 9,400,999.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,318,529.15 : 16,999,680.32 = 6,812,274.44 : x
  2. Step 2: Convert to fraction form
    12,318,529.15/16,999,680.32 = 6,812,274.44/x
  3. Step 3: Cross multiply
    12,318,529.15x = 16,999,680.32 × 6,812,274.44
  4. Step 4: Simplify right side
    12,318,529.15x = 115,806,487,778,825.12
  5. Step 5: Solve for x
    x = 115,806,487,778,825.12/12,318,529.15
  6. Step 6: Final answer
    x = 9,400,999.62

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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.