Home / 49,921,876.18-68,899,032.45-28,728,220.59

Finding the Fourth Proportional to 49,921,876.18, 68,899,032.45 and 28,728,220.59

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Solution

The fourth proportional to 49,921,876.18, 68,899,032.45 and 28,728,220.59 is: 39,648,882.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,921,876.18 : 68,899,032.45 = 28,728,220.59 : x
  2. Step 2: Convert to fraction form
    49,921,876.18/68,899,032.45 = 28,728,220.59/x
  3. Step 3: Cross multiply
    49,921,876.18x = 68,899,032.45 × 28,728,220.59
  4. Step 4: Simplify right side
    49,921,876.18x = 1,979,346,602,701,531.50
  5. Step 5: Solve for x
    x = 1,979,346,602,701,531.50/49,921,876.18
  6. Step 6: Final answer
    x = 39,648,882.49

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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.