Home / 21,373,921.80-32,081,877.90-10,603,384.20

Finding the Fourth Proportional to 21,373,921.80, 32,081,877.90 and 10,603,384.20

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Solution

The fourth proportional to 21,373,921.80, 32,081,877.90 and 10,603,384.20 is: 15,915,491.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,373,921.80 : 32,081,877.90 = 10,603,384.20 : x
  2. Step 2: Convert to fraction form
    21,373,921.80/32,081,877.90 = 10,603,384.20/x
  3. Step 3: Cross multiply
    21,373,921.80x = 32,081,877.90 × 10,603,384.20
  4. Step 4: Simplify right side
    21,373,921.80x = 340,176,477,231,189.12
  5. Step 5: Solve for x
    x = 340,176,477,231,189.12/21,373,921.80
  6. Step 6: Final answer
    x = 15,915,491.80

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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.