Home / 30,182,414.20-45,273,621.30-21,742,343.80

Finding the Fourth Proportional to 30,182,414.20, 45,273,621.30 and 21,742,343.80

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Solution

The fourth proportional to 30,182,414.20, 45,273,621.30 and 21,742,343.80 is: 32,613,515.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,182,414.20 : 45,273,621.30 = 21,742,343.80 : x
  2. Step 2: Convert to fraction form
    30,182,414.20/45,273,621.30 = 21,742,343.80/x
  3. Step 3: Cross multiply
    30,182,414.20x = 45,273,621.30 × 21,742,343.80
  4. Step 4: Simplify right side
    30,182,414.20x = 984,354,639,375,602.88
  5. Step 5: Solve for x
    x = 984,354,639,375,602.88/30,182,414.20
  6. Step 6: Final answer
    x = 32,613,515.70

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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.