Home / 100,500,400.80-150,750,601.20-39,916,126.80

Finding the Fourth Proportional to 100,500,400.80, 150,750,601.20 and 39,916,126.80

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Solution

The fourth proportional to 100,500,400.80, 150,750,601.20 and 39,916,126.80 is: 59,874,190.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,500,400.80 : 150,750,601.20 = 39,916,126.80 : x
  2. Step 2: Convert to fraction form
    100,500,400.80/150,750,601.20 = 39,916,126.80/x
  3. Step 3: Cross multiply
    100,500,400.80x = 150,750,601.20 × 39,916,126.80
  4. Step 4: Simplify right side
    100,500,400.80x = 6,017,380,112,675,431
  5. Step 5: Solve for x
    x = 6,017,380,112,675,431/100,500,400.80
  6. Step 6: Final answer
    x = 59,874,190.20

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1.5x scale

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.