Home / 158,194,938.64-218,310,761.43-87,631,629.68

Finding the Fourth Proportional to 158,194,938.64, 218,310,761.43 and 87,631,629.68

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Solution

The fourth proportional to 158,194,938.64, 218,310,761.43 and 87,631,629.68 is: 120,932,616.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,194,938.64 : 218,310,761.43 = 87,631,629.68 : x
  2. Step 2: Convert to fraction form
    158,194,938.64/218,310,761.43 = 87,631,629.68/x
  3. Step 3: Cross multiply
    158,194,938.64x = 218,310,761.43 × 87,631,629.68
  4. Step 4: Simplify right side
    158,194,938.64x = 19,130,927,800,110,364
  5. Step 5: Solve for x
    x = 19,130,927,800,110,364/158,194,938.64
  6. Step 6: Final answer
    x = 120,932,616.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.