Home / 152,455,608.28-210,390,071.52-82,840,987.72

Finding the Fourth Proportional to 152,455,608.28, 210,390,071.52 and 82,840,987.72

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Solution

The fourth proportional to 152,455,608.28, 210,390,071.52 and 82,840,987.72 is: 114,321,286.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,455,608.28 : 210,390,071.52 = 82,840,987.72 : x
  2. Step 2: Convert to fraction form
    152,455,608.28/210,390,071.52 = 82,840,987.72/x
  3. Step 3: Cross multiply
    152,455,608.28x = 210,390,071.52 × 82,840,987.72
  4. Step 4: Simplify right side
    152,455,608.28x = 17,428,921,331,198,242
  5. Step 5: Solve for x
    x = 17,428,921,331,198,242/152,455,608.28
  6. Step 6: Final answer
    x = 114,321,286.88

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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.