Home / 290,432,356.20-400,796,735.04-158,273,389.08

Finding the Fourth Proportional to 290,432,356.20, 400,796,735.04 and 158,273,389.08

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Solution

The fourth proportional to 290,432,356.20, 400,796,735.04 and 158,273,389.08 is: 218,417,322.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,432,356.20 : 400,796,735.04 = 158,273,389.08 : x
  2. Step 2: Convert to fraction form
    290,432,356.20/400,796,735.04 = 158,273,389.08/x
  3. Step 3: Cross multiply
    290,432,356.20x = 400,796,735.04 × 158,273,389.08
  4. Step 4: Simplify right side
    290,432,356.20x = 63,435,457,586,979,600
  5. Step 5: Solve for x
    x = 63,435,457,586,979,600/290,432,356.20
  6. Step 6: Final answer
    x = 218,417,322.43

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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.