Home / 20,778,719.04-28,674,586.08-11,611,362.72

Finding the Fourth Proportional to 20,778,719.04, 28,674,586.08 and 11,611,362.72

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Solution

The fourth proportional to 20,778,719.04, 28,674,586.08 and 11,611,362.72 is: 16,023,654.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,778,719.04 : 28,674,586.08 = 11,611,362.72 : x
  2. Step 2: Convert to fraction form
    20,778,719.04/28,674,586.08 = 11,611,362.72/x
  3. Step 3: Cross multiply
    20,778,719.04x = 28,674,586.08 × 11,611,362.72
  4. Step 4: Simplify right side
    20,778,719.04x = 332,951,019,820,742.94
  5. Step 5: Solve for x
    x = 332,951,019,820,742.94/20,778,719.04
  6. Step 6: Final answer
    x = 16,023,654.74

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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.