Home / 163,372,724.20-245,131,453.49-85,631,152.53

Finding the Fourth Proportional to 163,372,724.20, 245,131,453.49 and 85,631,152.53

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Solution

The fourth proportional to 163,372,724.20, 245,131,453.49 and 85,631,152.53 is: 128,484,659.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,372,724.20 : 245,131,453.49 = 85,631,152.53 : x
  2. Step 2: Convert to fraction form
    163,372,724.20/245,131,453.49 = 85,631,152.53/x
  3. Step 3: Cross multiply
    163,372,724.20x = 245,131,453.49 × 85,631,152.53
  4. Step 4: Simplify right side
    163,372,724.20x = 20,990,888,883,702,792
  5. Step 5: Solve for x
    x = 20,990,888,883,702,792/163,372,724.20
  6. Step 6: Final answer
    x = 128,484,659.76

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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.