Home / 21,318,455.20-31,968,351.60-8,534,711.20

Finding the Fourth Proportional to 21,318,455.20, 31,968,351.60 and 8,534,711.20

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Solution

The fourth proportional to 21,318,455.20, 31,968,351.60 and 8,534,711.20 is: 12,798,331.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,318,455.20 : 31,968,351.60 = 8,534,711.20 : x
  2. Step 2: Convert to fraction form
    21,318,455.20/31,968,351.60 = 8,534,711.20/x
  3. Step 3: Cross multiply
    21,318,455.20x = 31,968,351.60 × 8,534,711.20
  4. Step 4: Simplify right side
    21,318,455.20x = 272,840,648,446,057.91
  5. Step 5: Solve for x
    x = 272,840,648,446,057.91/21,318,455.20
  6. Step 6: Final answer
    x = 12,798,331.11

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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.