Home / 12,195,612.72-16,830,416.66-6,689,219.66

Finding the Fourth Proportional to 12,195,612.72, 16,830,416.66 and 6,689,219.66

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Solution

The fourth proportional to 12,195,612.72, 16,830,416.66 and 6,689,219.66 is: 9,231,381.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,195,612.72 : 16,830,416.66 = 6,689,219.66 : x
  2. Step 2: Convert to fraction form
    12,195,612.72/16,830,416.66 = 6,689,219.66/x
  3. Step 3: Cross multiply
    12,195,612.72x = 16,830,416.66 × 6,689,219.66
  4. Step 4: Simplify right side
    12,195,612.72x = 112,582,353,953,579.44
  5. Step 5: Solve for x
    x = 112,582,353,953,579.44/12,195,612.72
  6. Step 6: Final answer
    x = 9,231,381.53

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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.