Home / 21,888,142.70-32,832,214.05-12,818,216.30

Finding the Fourth Proportional to 21,888,142.70, 32,832,214.05 and 12,818,216.30

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Solution

The fourth proportional to 21,888,142.70, 32,832,214.05 and 12,818,216.30 is: 19,227,324.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,888,142.70 : 32,832,214.05 = 12,818,216.30 : x
  2. Step 2: Convert to fraction form
    21,888,142.70/32,832,214.05 = 12,818,216.30/x
  3. Step 3: Cross multiply
    21,888,142.70x = 32,832,214.05 × 12,818,216.30
  4. Step 4: Simplify right side
    21,888,142.70x = 420,850,421,300,799.06
  5. Step 5: Solve for x
    x = 420,850,421,300,799.06/21,888,142.70
  6. Step 6: Final answer
    x = 19,227,324.45

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.