Home / 199,728,006.80-299,592,010.20-139,212,064.40

Finding the Fourth Proportional to 199,728,006.80, 299,592,010.20 and 139,212,064.40

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Solution

The fourth proportional to 199,728,006.80, 299,592,010.20 and 139,212,064.40 is: 208,818,096.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,728,006.80 : 299,592,010.20 = 139,212,064.40 : x
  2. Step 2: Convert to fraction form
    199,728,006.80/299,592,010.20 = 139,212,064.40/x
  3. Step 3: Cross multiply
    199,728,006.80x = 299,592,010.20 × 139,212,064.40
  4. Step 4: Simplify right side
    199,728,006.80x = 41,706,822,217,687,856
  5. Step 5: Solve for x
    x = 41,706,822,217,687,856/199,728,006.80
  6. Step 6: Final answer
    x = 208,818,096.60

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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.