Home / 143,440,101.72-197,946,415.71-81,560,434.82

Finding the Fourth Proportional to 143,440,101.72, 197,946,415.71 and 81,560,434.82

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Solution

The fourth proportional to 143,440,101.72, 197,946,415.71 and 81,560,434.82 is: 112,552,874.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,440,101.72 : 197,946,415.71 = 81,560,434.82 : x
  2. Step 2: Convert to fraction form
    143,440,101.72/197,946,415.71 = 81,560,434.82/x
  3. Step 3: Cross multiply
    143,440,101.72x = 197,946,415.71 × 81,560,434.82
  4. Step 4: Simplify right side
    143,440,101.72x = 16,144,595,735,378,348
  5. Step 5: Solve for x
    x = 16,144,595,735,378,348/143,440,101.72
  6. Step 6: Final answer
    x = 112,552,874.28

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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.