Home / 81,245,477.09-112,116,733.12-45,481,417.49

Finding the Fourth Proportional to 81,245,477.09, 112,116,733.12 and 45,481,417.49

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Solution

The fourth proportional to 81,245,477.09, 112,116,733.12 and 45,481,417.49 is: 62,763,222.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,245,477.09 : 112,116,733.12 = 45,481,417.49 : x
  2. Step 2: Convert to fraction form
    81,245,477.09/112,116,733.12 = 45,481,417.49/x
  3. Step 3: Cross multiply
    81,245,477.09x = 112,116,733.12 × 45,481,417.49
  4. Step 4: Simplify right side
    81,245,477.09x = 5,099,227,946,645,631
  5. Step 5: Solve for x
    x = 5,099,227,946,645,631/81,245,477.09
  6. Step 6: Final answer
    x = 62,763,222.39

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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.