Home / 19,330,181.80-28,995,272.70-12,960,082.60

Finding the Fourth Proportional to 19,330,181.80, 28,995,272.70 and 12,960,082.60

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Solution

The fourth proportional to 19,330,181.80, 28,995,272.70 and 12,960,082.60 is: 19,440,123.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,330,181.80 : 28,995,272.70 = 12,960,082.60 : x
  2. Step 2: Convert to fraction form
    19,330,181.80/28,995,272.70 = 12,960,082.60/x
  3. Step 3: Cross multiply
    19,330,181.80x = 28,995,272.70 × 12,960,082.60
  4. Step 4: Simplify right side
    19,330,181.80x = 375,781,129,201,525
  5. Step 5: Solve for x
    x = 375,781,129,201,525/19,330,181.80
  6. Step 6: Final answer
    x = 19,440,123.90

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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.