Home / 290,419,659.40-400,760,184.16-160,039,432.84

Finding the Fourth Proportional to 290,419,659.40, 400,760,184.16 and 160,039,432.84

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Solution

The fourth proportional to 290,419,659.40, 400,760,184.16 and 160,039,432.84 is: 220,843,976.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,419,659.40 : 400,760,184.16 = 160,039,432.84 : x
  2. Step 2: Convert to fraction form
    290,419,659.40/400,760,184.16 = 160,039,432.84/x
  3. Step 3: Cross multiply
    290,419,659.40x = 400,760,184.16 × 160,039,432.84
  4. Step 4: Simplify right side
    290,419,659.40x = 64,137,432,577,820,360
  5. Step 5: Solve for x
    x = 64,137,432,577,820,360/290,419,659.40
  6. Step 6: Final answer
    x = 220,843,976.99

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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.