Home / 85,192,715.80-127,789,075.50-20,496,520.93

Finding the Fourth Proportional to 85,192,715.80, 127,789,075.50 and 20,496,520.93

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Solution

The fourth proportional to 85,192,715.80, 127,789,075.50 and 20,496,520.93 is: 30,744,781.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,192,715.80 : 127,789,075.50 = 20,496,520.93 : x
  2. Step 2: Convert to fraction form
    85,192,715.80/127,789,075.50 = 20,496,520.93/x
  3. Step 3: Cross multiply
    85,192,715.80x = 127,789,075.50 × 20,496,520.93
  4. Step 4: Simplify right side
    85,192,715.80x = 2,619,231,460,611,100
  5. Step 5: Solve for x
    x = 2,619,231,460,611,100/85,192,715.80
  6. Step 6: Final answer
    x = 30,744,781.83

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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.