Home / 21,385,542.40-32,078,313.60-7,005,142.60

Finding the Fourth Proportional to 21,385,542.40, 32,078,313.60 and 7,005,142.60

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Solution

The fourth proportional to 21,385,542.40, 32,078,313.60 and 7,005,142.60 is: 10,507,713.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,385,542.40 : 32,078,313.60 = 7,005,142.60 : x
  2. Step 2: Convert to fraction form
    21,385,542.40/32,078,313.60 = 7,005,142.60/x
  3. Step 3: Cross multiply
    21,385,542.40x = 32,078,313.60 × 7,005,142.60
  4. Step 4: Simplify right side
    21,385,542.40x = 224,713,161,135,519.34
  5. Step 5: Solve for x
    x = 224,713,161,135,519.34/21,385,542.40
  6. Step 6: Final answer
    x = 10,507,713.90

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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.