Home / 1,987,698,998.20-2,981,520,503.70-897,180,316.60

Finding the Fourth Proportional to 1,987,698,998.20, 2,981,520,503.70 and 897,180,316.60

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Solution

The fourth proportional to 1,987,698,998.20, 2,981,520,503.70 and 897,180,316.60 is: 1,345,757,839.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,698,998.20 : 2,981,520,503.70 = 897,180,316.60 : x
  2. Step 2: Convert to fraction form
    1,987,698,998.20/2,981,520,503.70 = 897,180,316.60/x
  3. Step 3: Cross multiply
    1,987,698,998.20x = 2,981,520,503.70 × 897,180,316.60
  4. Step 4: Simplify right side
    1,987,698,998.20x = 2,674,961,509,458,957,312
  5. Step 5: Solve for x
    x = 2,674,961,509,458,957,312/1,987,698,998.20
  6. Step 6: Final answer
    x = 1,345,757,839.53

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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.