Home / 12,318,479.92-16,999,612.46-6,812,225.26

Finding the Fourth Proportional to 12,318,479.92, 16,999,612.46 and 6,812,225.26

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Solution

The fourth proportional to 12,318,479.92, 16,999,612.46 and 6,812,225.26 is: 9,400,931.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,318,479.92 : 16,999,612.46 = 6,812,225.26 : x
  2. Step 2: Convert to fraction form
    12,318,479.92/16,999,612.46 = 6,812,225.26/x
  3. Step 3: Cross multiply
    12,318,479.92x = 16,999,612.46 × 6,812,225.26
  4. Step 4: Simplify right side
    12,318,479.92x = 115,805,189,410,222.73
  5. Step 5: Solve for x
    x = 115,805,189,410,222.73/12,318,479.92
  6. Step 6: Final answer
    x = 9,400,931.78

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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.