Home / 20,206,521.81-30,328,945.05-12,506,875.98

Finding the Fourth Proportional to 20,206,521.81, 30,328,945.05 and 12,506,875.98

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Solution

The fourth proportional to 20,206,521.81, 30,328,945.05 and 12,506,875.98 is: 18,772,174.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,206,521.81 : 30,328,945.05 = 12,506,875.98 : x
  2. Step 2: Convert to fraction form
    20,206,521.81/30,328,945.05 = 12,506,875.98/x
  3. Step 3: Cross multiply
    20,206,521.81x = 30,328,945.05 × 12,506,875.98
  4. Step 4: Simplify right side
    20,206,521.81x = 379,320,354,344,584.94
  5. Step 5: Solve for x
    x = 379,320,354,344,584.94/20,206,521.81
  6. Step 6: Final answer
    x = 18,772,174.54

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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.