Home / 21,928,972.68-30,262,221.54-12,139,580.20

Finding the Fourth Proportional to 21,928,972.68, 30,262,221.54 and 12,139,580.20

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Solution

The fourth proportional to 21,928,972.68, 30,262,221.54 and 12,139,580.20 is: 16,752,753.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,928,972.68 : 30,262,221.54 = 12,139,580.20 : x
  2. Step 2: Convert to fraction form
    21,928,972.68/30,262,221.54 = 12,139,580.20/x
  3. Step 3: Cross multiply
    21,928,972.68x = 30,262,221.54 × 12,139,580.20
  4. Step 4: Simplify right side
    21,928,972.68x = 367,370,665,414,997.50
  5. Step 5: Solve for x
    x = 367,370,665,414,997.50/21,928,972.68
  6. Step 6: Final answer
    x = 16,752,753.12

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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.