Home / 120,013,382.88-165,619,263.52-65,009,239.36

Finding the Fourth Proportional to 120,013,382.88, 165,619,263.52 and 65,009,239.36

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Solution

The fourth proportional to 120,013,382.88, 165,619,263.52 and 65,009,239.36 is: 89,713,181.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,013,382.88 : 165,619,263.52 = 65,009,239.36 : x
  2. Step 2: Convert to fraction form
    120,013,382.88/165,619,263.52 = 65,009,239.36/x
  3. Step 3: Cross multiply
    120,013,382.88x = 165,619,263.52 × 65,009,239.36
  4. Step 4: Simplify right side
    120,013,382.88x = 10,766,782,344,798,596
  5. Step 5: Solve for x
    x = 10,766,782,344,798,596/120,013,382.88
  6. Step 6: Final answer
    x = 89,713,181.03

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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.