Home / 158,194,940.20-218,310,763.59-87,631,631.24

Finding the Fourth Proportional to 158,194,940.20, 218,310,763.59 and 87,631,631.24

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Solution

The fourth proportional to 158,194,940.20, 218,310,763.59 and 87,631,631.24 is: 120,932,618.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,194,940.20 : 218,310,763.59 = 87,631,631.24 : x
  2. Step 2: Convert to fraction form
    158,194,940.20/218,310,763.59 = 87,631,631.24/x
  3. Step 3: Cross multiply
    158,194,940.20x = 218,310,763.59 × 87,631,631.24
  4. Step 4: Simplify right side
    158,194,940.20x = 19,130,928,330,641,696
  5. Step 5: Solve for x
    x = 19,130,928,330,641,696/158,194,940.20
  6. Step 6: Final answer
    x = 120,932,618.37

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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.