Home / 20,774,630.10-31,161,945.15-11,208,692.10

Finding the Fourth Proportional to 20,774,630.10, 31,161,945.15 and 11,208,692.10

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Solution

The fourth proportional to 20,774,630.10, 31,161,945.15 and 11,208,692.10 is: 16,813,038.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,774,630.10 : 31,161,945.15 = 11,208,692.10 : x
  2. Step 2: Convert to fraction form
    20,774,630.10/31,161,945.15 = 11,208,692.10/x
  3. Step 3: Cross multiply
    20,774,630.10x = 31,161,945.15 × 11,208,692.10
  4. Step 4: Simplify right side
    20,774,630.10x = 349,284,648,423,438.31
  5. Step 5: Solve for x
    x = 349,284,648,423,438.31/20,774,630.10
  6. Step 6: Final answer
    x = 16,813,038.15

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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.