Home / 199,772,796.20-299,584,544.70-139,008,021.80

Finding the Fourth Proportional to 199,772,796.20, 299,584,544.70 and 139,008,021.80

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Solution

The fourth proportional to 199,772,796.20, 299,584,544.70 and 139,008,021.80 is: 208,460,089.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,772,796.20 : 299,584,544.70 = 139,008,021.80 : x
  2. Step 2: Convert to fraction form
    199,772,796.20/299,584,544.70 = 139,008,021.80/x
  3. Step 3: Cross multiply
    199,772,796.20x = 299,584,544.70 × 139,008,021.80
  4. Step 4: Simplify right side
    199,772,796.20x = 41,644,654,920,600,680
  5. Step 5: Solve for x
    x = 41,644,654,920,600,680/199,772,796.20
  6. Step 6: Final answer
    x = 208,460,089.23

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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.