Home / 21,096,047.80-31,560,090.90-18,287,356.60

Finding the Fourth Proportional to 21,096,047.80, 31,560,090.90 and 18,287,356.60

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Solution

The fourth proportional to 21,096,047.80, 31,560,090.90 and 18,287,356.60 is: 27,358,235.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,096,047.80 : 31,560,090.90 = 18,287,356.60 : x
  2. Step 2: Convert to fraction form
    21,096,047.80/31,560,090.90 = 18,287,356.60/x
  3. Step 3: Cross multiply
    21,096,047.80x = 31,560,090.90 × 18,287,356.60
  4. Step 4: Simplify right side
    21,096,047.80x = 577,150,636,616,715
  5. Step 5: Solve for x
    x = 577,150,636,616,715/21,096,047.80
  6. Step 6: Final answer
    x = 27,358,235.16

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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.