Home / 117,117,889.82-161,622,689.70-64,910,288.51

Finding the Fourth Proportional to 117,117,889.82, 161,622,689.70 and 64,910,288.51

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Solution

The fourth proportional to 117,117,889.82, 161,622,689.70 and 64,910,288.51 is: 89,576,199.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,117,889.82 : 161,622,689.70 = 64,910,288.51 : x
  2. Step 2: Convert to fraction form
    117,117,889.82/161,622,689.70 = 64,910,288.51/x
  3. Step 3: Cross multiply
    117,117,889.82x = 161,622,689.70 × 64,910,288.51
  4. Step 4: Simplify right side
    117,117,889.82x = 10,490,975,418,319,956
  5. Step 5: Solve for x
    x = 10,490,975,418,319,956/117,117,889.82
  6. Step 6: Final answer
    x = 89,576,199.11

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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.