Home / 83,979,108.96-115,940,883.12-74,660,941.54

Finding the Fourth Proportional to 83,979,108.96, 115,940,883.12 and 74,660,941.54

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Solution

The fourth proportional to 83,979,108.96, 115,940,883.12 and 74,660,941.54 is: 103,076,296.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,979,108.96 : 115,940,883.12 = 74,660,941.54 : x
  2. Step 2: Convert to fraction form
    83,979,108.96/115,940,883.12 = 74,660,941.54/x
  3. Step 3: Cross multiply
    83,979,108.96x = 115,940,883.12 × 74,660,941.54
  4. Step 4: Simplify right side
    83,979,108.96x = 8,656,255,496,148,461
  5. Step 5: Solve for x
    x = 8,656,255,496,148,461/83,979,108.96
  6. Step 6: Final answer
    x = 103,076,296.03

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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.