Home / 491,178,640.80-736,767,961.20-199,895,828.70

Finding the Fourth Proportional to 491,178,640.80, 736,767,961.20 and 199,895,828.70

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Solution

The fourth proportional to 491,178,640.80, 736,767,961.20 and 199,895,828.70 is: 299,843,743.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,178,640.80 : 736,767,961.20 = 199,895,828.70 : x
  2. Step 2: Convert to fraction form
    491,178,640.80/736,767,961.20 = 199,895,828.70/x
  3. Step 3: Cross multiply
    491,178,640.80x = 736,767,961.20 × 199,895,828.70
  4. Step 4: Simplify right side
    491,178,640.80x = 147,276,842,163,683,456
  5. Step 5: Solve for x
    x = 147,276,842,163,683,456/491,178,640.80
  6. Step 6: Final answer
    x = 299,843,743.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.