Home / 19,764,020.70-29,646,031.05-12,983,445.90

Finding the Fourth Proportional to 19,764,020.70, 29,646,031.05 and 12,983,445.90

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Solution

The fourth proportional to 19,764,020.70, 29,646,031.05 and 12,983,445.90 is: 19,475,168.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,764,020.70 : 29,646,031.05 = 12,983,445.90 : x
  2. Step 2: Convert to fraction form
    19,764,020.70/29,646,031.05 = 12,983,445.90/x
  3. Step 3: Cross multiply
    19,764,020.70x = 29,646,031.05 × 12,983,445.90
  4. Step 4: Simplify right side
    19,764,020.70x = 384,907,640,287,395.19
  5. Step 5: Solve for x
    x = 384,907,640,287,395.19/19,764,020.70
  6. Step 6: Final answer
    x = 19,475,168.85

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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.