Home / 77,064,855.88-115,516,364.46-25,929,121.72

Finding the Fourth Proportional to 77,064,855.88, 115,516,364.46 and 25,929,121.72

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Solution

The fourth proportional to 77,064,855.88, 115,516,364.46 and 25,929,121.72 is: 38,866,456.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,064,855.88 : 115,516,364.46 = 25,929,121.72 : x
  2. Step 2: Convert to fraction form
    77,064,855.88/115,516,364.46 = 25,929,121.72/x
  3. Step 3: Cross multiply
    77,064,855.88x = 115,516,364.46 × 25,929,121.72
  4. Step 4: Simplify right side
    77,064,855.88x = 2,995,237,874,735,222
  5. Step 5: Solve for x
    x = 2,995,237,874,735,222/77,064,855.88
  6. Step 6: Final answer
    x = 38,866,456.58

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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.