Home / 30,053,912.80-45,080,869.20-20,487,974.80

Finding the Fourth Proportional to 30,053,912.80, 45,080,869.20 and 20,487,974.80

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Solution

The fourth proportional to 30,053,912.80, 45,080,869.20 and 20,487,974.80 is: 30,731,962.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,053,912.80 : 45,080,869.20 = 20,487,974.80 : x
  2. Step 2: Convert to fraction form
    30,053,912.80/45,080,869.20 = 20,487,974.80/x
  3. Step 3: Cross multiply
    30,053,912.80x = 45,080,869.20 × 20,487,974.80
  4. Step 4: Simplify right side
    30,053,912.80x = 923,615,712,131,696.25
  5. Step 5: Solve for x
    x = 923,615,712,131,696.25/30,053,912.80
  6. Step 6: Final answer
    x = 30,731,962.20

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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.