Home / 79,880,913.89-119,824,789.85-31,369,264.44

Finding the Fourth Proportional to 79,880,913.89, 119,824,789.85 and 31,369,264.44

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Solution

The fourth proportional to 79,880,913.89, 119,824,789.85 and 31,369,264.44 is: 47,055,239.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,880,913.89 : 119,824,789.85 = 31,369,264.44 : x
  2. Step 2: Convert to fraction form
    79,880,913.89/119,824,789.85 = 31,369,264.44/x
  3. Step 3: Cross multiply
    79,880,913.89x = 119,824,789.85 × 31,369,264.44
  4. Step 4: Simplify right side
    79,880,913.89x = 3,758,815,519,272,078
  5. Step 5: Solve for x
    x = 3,758,815,519,272,078/79,880,913.89
  6. Step 6: Final answer
    x = 47,055,239.31

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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.