Home / 20,204,237.75-30,313,885.85-12,123,013.55

Finding the Fourth Proportional to 20,204,237.75, 30,313,885.85 and 12,123,013.55

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Solution

The fourth proportional to 20,204,237.75, 30,313,885.85 and 12,123,013.55 is: 18,189,038.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,204,237.75 : 30,313,885.85 = 12,123,013.55 : x
  2. Step 2: Convert to fraction form
    20,204,237.75/30,313,885.85 = 12,123,013.55/x
  3. Step 3: Cross multiply
    20,204,237.75x = 30,313,885.85 × 12,123,013.55
  4. Step 4: Simplify right side
    20,204,237.75x = 367,495,648,852,088.19
  5. Step 5: Solve for x
    x = 367,495,648,852,088.19/20,204,237.75
  6. Step 6: Final answer
    x = 18,189,038.03

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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.