Home / 21,906,712.96-30,229,235.10-12,116,946.46

Finding the Fourth Proportional to 21,906,712.96, 30,229,235.10 and 12,116,946.46

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Solution

The fourth proportional to 21,906,712.96, 30,229,235.10 and 12,116,946.46 is: 16,720,263.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,906,712.96 : 30,229,235.10 = 12,116,946.46 : x
  2. Step 2: Convert to fraction form
    21,906,712.96/30,229,235.10 = 12,116,946.46/x
  3. Step 3: Cross multiply
    21,906,712.96x = 30,229,235.10 × 12,116,946.46
  4. Step 4: Simplify right side
    21,906,712.96x = 366,286,023,233,452.81
  5. Step 5: Solve for x
    x = 366,286,023,233,452.81/21,906,712.96
  6. Step 6: Final answer
    x = 16,720,263.96

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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.