Home / 115,837,513.28-159,883,609.20-66,306,599.36

Finding the Fourth Proportional to 115,837,513.28, 159,883,609.20 and 66,306,599.36

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Solution

The fourth proportional to 115,837,513.28, 159,883,609.20 and 66,306,599.36 is: 91,519,043.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,837,513.28 : 159,883,609.20 = 66,306,599.36 : x
  2. Step 2: Convert to fraction form
    115,837,513.28/159,883,609.20 = 66,306,599.36/x
  3. Step 3: Cross multiply
    115,837,513.28x = 159,883,609.20 × 66,306,599.36
  4. Step 4: Simplify right side
    115,837,513.28x = 10,601,338,419,455,210
  5. Step 5: Solve for x
    x = 10,601,338,419,455,210/115,837,513.28
  6. Step 6: Final answer
    x = 91,519,043.52

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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.