Home / 20,823,328.31-31,237,898.79-8,690,010.53

Finding the Fourth Proportional to 20,823,328.31, 31,237,898.79 and 8,690,010.53

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Solution

The fourth proportional to 20,823,328.31, 31,237,898.79 and 8,690,010.53 is: 13,036,228.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,823,328.31 : 31,237,898.79 = 8,690,010.53 : x
  2. Step 2: Convert to fraction form
    20,823,328.31/31,237,898.79 = 8,690,010.53/x
  3. Step 3: Cross multiply
    20,823,328.31x = 31,237,898.79 × 8,690,010.53
  4. Step 4: Simplify right side
    20,823,328.31x = 271,457,669,263,984.78
  5. Step 5: Solve for x
    x = 271,457,669,263,984.78/20,823,328.31
  6. Step 6: Final answer
    x = 13,036,228.66

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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.