Home / 88,128,019.80-132,192,029.70-86,336,429.40

Finding the Fourth Proportional to 88,128,019.80, 132,192,029.70 and 86,336,429.40

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Solution

The fourth proportional to 88,128,019.80, 132,192,029.70 and 86,336,429.40 is: 129,504,644.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,128,019.80 : 132,192,029.70 = 86,336,429.40 : x
  2. Step 2: Convert to fraction form
    88,128,019.80/132,192,029.70 = 86,336,429.40/x
  3. Step 3: Cross multiply
    88,128,019.80x = 132,192,029.70 × 86,336,429.40
  4. Step 4: Simplify right side
    88,128,019.80x = 11,412,987,839,436,754
  5. Step 5: Solve for x
    x = 11,412,987,839,436,754/88,128,019.80
  6. Step 6: Final answer
    x = 129,504,644.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.