Home / 432,686,786.40-649,030,179.60-125,988,904.80

Finding the Fourth Proportional to 432,686,786.40, 649,030,179.60 and 125,988,904.80

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Solution

The fourth proportional to 432,686,786.40, 649,030,179.60 and 125,988,904.80 is: 188,983,357.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,686,786.40 : 649,030,179.60 = 125,988,904.80 : x
  2. Step 2: Convert to fraction form
    432,686,786.40/649,030,179.60 = 125,988,904.80/x
  3. Step 3: Cross multiply
    432,686,786.40x = 649,030,179.60 × 125,988,904.80
  4. Step 4: Simplify right side
    432,686,786.40x = 81,770,601,509,951,296
  5. Step 5: Solve for x
    x = 81,770,601,509,951,296/432,686,786.40
  6. Step 6: Final answer
    x = 188,983,357.20

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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.