Home / 20,235,442.50-27,934,030.12-12,903,131.34

Finding the Fourth Proportional to 20,235,442.50, 27,934,030.12 and 12,903,131.34

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Solution

The fourth proportional to 20,235,442.50, 27,934,030.12 and 12,903,131.34 is: 17,812,136.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,235,442.50 : 27,934,030.12 = 12,903,131.34 : x
  2. Step 2: Convert to fraction form
    20,235,442.50/27,934,030.12 = 12,903,131.34/x
  3. Step 3: Cross multiply
    20,235,442.50x = 27,934,030.12 × 12,903,131.34
  4. Step 4: Simplify right side
    20,235,442.50x = 360,436,459,493,876
  5. Step 5: Solve for x
    x = 360,436,459,493,876/20,235,442.50
  6. Step 6: Final answer
    x = 17,812,136.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.