Home / 20,811,175.31-31,219,740.02-6,435,351.81

Finding the Fourth Proportional to 20,811,175.31, 31,219,740.02 and 6,435,351.81

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Solution

The fourth proportional to 20,811,175.31, 31,219,740.02 and 6,435,351.81 is: 9,653,948.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,811,175.31 : 31,219,740.02 = 6,435,351.81 : x
  2. Step 2: Convert to fraction form
    20,811,175.31/31,219,740.02 = 6,435,351.81/x
  3. Step 3: Cross multiply
    20,811,175.31x = 31,219,740.02 × 6,435,351.81
  4. Step 4: Simplify right side
    20,811,175.31x = 200,910,010,461,524.81
  5. Step 5: Solve for x
    x = 200,910,010,461,524.81/20,811,175.31
  6. Step 6: Final answer
    x = 9,653,948.30

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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.