Home / 143,607,177,821.20-215,410,766,731.80-90,711,367,056.40

Finding the Fourth Proportional to 143,607,177,821.20, 215,410,766,731.80 and 90,711,367,056.40

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Solution

The fourth proportional to 143,607,177,821.20, 215,410,766,731.80 and 90,711,367,056.40 is: 136,067,050,584.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,607,177,821.20 : 215,410,766,731.80 = 90,711,367,056.40 : x
  2. Step 2: Convert to fraction form
    143,607,177,821.20/215,410,766,731.80 = 90,711,367,056.40/x
  3. Step 3: Cross multiply
    143,607,177,821.20x = 215,410,766,731.80 × 90,711,367,056.40
  4. Step 4: Simplify right side
    143,607,177,821.20x = 19,540,205,128,908,867,108,864
  5. Step 5: Solve for x
    x = 19,540,205,128,908,867,108,864/143,607,177,821.20
  6. Step 6: Final answer
    x = 136,067,050,584.60

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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.