Home / 115,943,516.70-160,002,385.59-66,384,650.94

Finding the Fourth Proportional to 115,943,516.70, 160,002,385.59 and 66,384,650.94

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Solution

The fourth proportional to 115,943,516.70, 160,002,385.59 and 66,384,650.94 is: 91,611,008.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,943,516.70 : 160,002,385.59 = 66,384,650.94 : x
  2. Step 2: Convert to fraction form
    115,943,516.70/160,002,385.59 = 66,384,650.94/x
  3. Step 3: Cross multiply
    115,943,516.70x = 160,002,385.59 × 66,384,650.94
  4. Step 4: Simplify right side
    115,943,516.70x = 10,621,702,516,959,436
  5. Step 5: Solve for x
    x = 10,621,702,516,959,436/115,943,516.70
  6. Step 6: Final answer
    x = 91,611,008.70

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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.