Home / 30,344,872.20-45,517,308.30-21,097,798.80

Finding the Fourth Proportional to 30,344,872.20, 45,517,308.30 and 21,097,798.80

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Solution

The fourth proportional to 30,344,872.20, 45,517,308.30 and 21,097,798.80 is: 31,646,698.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,344,872.20 : 45,517,308.30 = 21,097,798.80 : x
  2. Step 2: Convert to fraction form
    30,344,872.20/45,517,308.30 = 21,097,798.80/x
  3. Step 3: Cross multiply
    30,344,872.20x = 45,517,308.30 × 21,097,798.80
  4. Step 4: Simplify right side
    30,344,872.20x = 960,315,012,430,970
  5. Step 5: Solve for x
    x = 960,315,012,430,970/30,344,872.20
  6. Step 6: Final answer
    x = 31,646,698.20

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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.