Home / 76,685,471.21-115,085,336.21-56,267,951.15

Finding the Fourth Proportional to 76,685,471.21, 115,085,336.21 and 56,267,951.15

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Solution

The fourth proportional to 76,685,471.21, 115,085,336.21 and 56,267,951.15 is: 84,443,845.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,685,471.21 : 115,085,336.21 = 56,267,951.15 : x
  2. Step 2: Convert to fraction form
    76,685,471.21/115,085,336.21 = 56,267,951.15/x
  3. Step 3: Cross multiply
    76,685,471.21x = 115,085,336.21 × 56,267,951.15
  4. Step 4: Simplify right side
    76,685,471.21x = 6,475,616,075,945,606
  5. Step 5: Solve for x
    x = 6,475,616,075,945,606/76,685,471.21
  6. Step 6: Final answer
    x = 84,443,845.41

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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.