Home / 151,726,765.34-209,382,933.48-82,112,146.40

Finding the Fourth Proportional to 151,726,765.34, 209,382,933.48 and 82,112,146.40

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Solution

The fourth proportional to 151,726,765.34, 209,382,933.48 and 82,112,146.40 is: 113,314,760.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,726,765.34 : 209,382,933.48 = 82,112,146.40 : x
  2. Step 2: Convert to fraction form
    151,726,765.34/209,382,933.48 = 82,112,146.40/x
  3. Step 3: Cross multiply
    151,726,765.34x = 209,382,933.48 × 82,112,146.40
  4. Step 4: Simplify right side
    151,726,765.34x = 17,192,882,087,571,222
  5. Step 5: Solve for x
    x = 17,192,882,087,571,222/151,726,765.34
  6. Step 6: Final answer
    x = 113,314,760.58

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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.