Home / 12,687,633.40-19,031,450.10-3,102,887.20

Finding the Fourth Proportional to 12,687,633.40, 19,031,450.10 and 3,102,887.20

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Solution

The fourth proportional to 12,687,633.40, 19,031,450.10 and 3,102,887.20 is: 4,654,330.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,633.40 : 19,031,450.10 = 3,102,887.20 : x
  2. Step 2: Convert to fraction form
    12,687,633.40/19,031,450.10 = 3,102,887.20/x
  3. Step 3: Cross multiply
    12,687,633.40x = 19,031,450.10 × 3,102,887.20
  4. Step 4: Simplify right side
    12,687,633.40x = 59,052,442,912,728.73
  5. Step 5: Solve for x
    x = 59,052,442,912,728.73/12,687,633.40
  6. Step 6: Final answer
    x = 4,654,330.80

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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.