Home / 117,479,771.49-161,916,869.19-86,051,049.51

Finding the Fourth Proportional to 117,479,771.49, 161,916,869.19 and 86,051,049.51

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Solution

The fourth proportional to 117,479,771.49, 161,916,869.19 and 86,051,049.51 is: 118,600,133.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,479,771.49 : 161,916,869.19 = 86,051,049.51 : x
  2. Step 2: Convert to fraction form
    117,479,771.49/161,916,869.19 = 86,051,049.51/x
  3. Step 3: Cross multiply
    117,479,771.49x = 161,916,869.19 × 86,051,049.51
  4. Step 4: Simplify right side
    117,479,771.49x = 13,933,116,527,172,884
  5. Step 5: Solve for x
    x = 13,933,116,527,172,884/117,479,771.49
  6. Step 6: Final answer
    x = 118,600,133.03

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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.