Home / 103,612,621.20-155,391,840.60-30,809,792.40

Finding the Fourth Proportional to 103,612,621.20, 155,391,840.60 and 30,809,792.40

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Solution

The fourth proportional to 103,612,621.20, 155,391,840.60 and 30,809,792.40 is: 46,206,632.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,612,621.20 : 155,391,840.60 = 30,809,792.40 : x
  2. Step 2: Convert to fraction form
    103,612,621.20/155,391,840.60 = 30,809,792.40/x
  3. Step 3: Cross multiply
    103,612,621.20x = 155,391,840.60 × 30,809,792.40
  4. Step 4: Simplify right side
    103,612,621.20x = 4,787,590,349,539,891
  5. Step 5: Solve for x
    x = 4,787,590,349,539,891/103,612,621.20
  6. Step 6: Final answer
    x = 46,206,632.88

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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.