Home / 78,708,571.02-117,897,519.33-49,939,898.22

Finding the Fourth Proportional to 78,708,571.02, 117,897,519.33 and 49,939,898.22

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Solution

The fourth proportional to 78,708,571.02, 117,897,519.33 and 49,939,898.22 is: 74,804,942.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,708,571.02 : 117,897,519.33 = 49,939,898.22 : x
  2. Step 2: Convert to fraction form
    78,708,571.02/117,897,519.33 = 49,939,898.22/x
  3. Step 3: Cross multiply
    78,708,571.02x = 117,897,519.33 × 49,939,898.22
  4. Step 4: Simplify right side
    78,708,571.02x = 5,887,790,115,730,682
  5. Step 5: Solve for x
    x = 5,887,790,115,730,682/78,708,571.02
  6. Step 6: Final answer
    x = 74,804,942.33

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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.