Home / 51,109,815.20-76,664,722.80-31,977,939.20

Finding the Fourth Proportional to 51,109,815.20, 76,664,722.80 and 31,977,939.20

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Solution

The fourth proportional to 51,109,815.20, 76,664,722.80 and 31,977,939.20 is: 47,966,908.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,109,815.20 : 76,664,722.80 = 31,977,939.20 : x
  2. Step 2: Convert to fraction form
    51,109,815.20/76,664,722.80 = 31,977,939.20/x
  3. Step 3: Cross multiply
    51,109,815.20x = 76,664,722.80 × 31,977,939.20
  4. Step 4: Simplify right side
    51,109,815.20x = 2,451,579,844,483,253.50
  5. Step 5: Solve for x
    x = 2,451,579,844,483,253.50/51,109,815.20
  6. Step 6: Final answer
    x = 47,966,908.80

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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.