Home / 412,063,422.40-618,095,133.60-105,339,296.80

Finding the Fourth Proportional to 412,063,422.40, 618,095,133.60 and 105,339,296.80

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Solution

The fourth proportional to 412,063,422.40, 618,095,133.60 and 105,339,296.80 is: 158,008,945.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,063,422.40 : 618,095,133.60 = 105,339,296.80 : x
  2. Step 2: Convert to fraction form
    412,063,422.40/618,095,133.60 = 105,339,296.80/x
  3. Step 3: Cross multiply
    412,063,422.40x = 618,095,133.60 × 105,339,296.80
  4. Step 4: Simplify right side
    412,063,422.40x = 65,109,706,728,926,056
  5. Step 5: Solve for x
    x = 65,109,706,728,926,056/412,063,422.40
  6. Step 6: Final answer
    x = 158,008,945.20

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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.