Home / 20,807,153.84-31,176,648.19-11,081,440.91

Finding the Fourth Proportional to 20,807,153.84, 31,176,648.19 and 11,081,440.91

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Solution

The fourth proportional to 20,807,153.84, 31,176,648.19 and 11,081,440.91 is: 16,604,009.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,807,153.84 : 31,176,648.19 = 11,081,440.91 : x
  2. Step 2: Convert to fraction form
    20,807,153.84/31,176,648.19 = 11,081,440.91/x
  3. Step 3: Cross multiply
    20,807,153.84x = 31,176,648.19 × 11,081,440.91
  4. Step 4: Simplify right side
    20,807,153.84x = 345,482,184,781,136.88
  5. Step 5: Solve for x
    x = 345,482,184,781,136.88/20,807,153.84
  6. Step 6: Final answer
    x = 16,604,009.73

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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.