Home / 290,471,184.68-400,838,563.32-158,309,342.89

Finding the Fourth Proportional to 290,471,184.68, 400,838,563.32 and 158,309,342.89

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Solution

The fourth proportional to 290,471,184.68, 400,838,563.32 and 158,309,342.89 is: 218,460,532.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,471,184.68 : 400,838,563.32 = 158,309,342.89 : x
  2. Step 2: Convert to fraction form
    290,471,184.68/400,838,563.32 = 158,309,342.89/x
  3. Step 3: Cross multiply
    290,471,184.68x = 400,838,563.32 × 158,309,342.89
  4. Step 4: Simplify right side
    290,471,184.68x = 63,456,489,564,160,848
  5. Step 5: Solve for x
    x = 63,456,489,564,160,848/290,471,184.68
  6. Step 6: Final answer
    x = 218,460,532.10

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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.