Home / 979,775,999.70-1,469,663,999.55-880,006,809.30

Finding the Fourth Proportional to 979,775,999.70, 1,469,663,999.55 and 880,006,809.30

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Solution

The fourth proportional to 979,775,999.70, 1,469,663,999.55 and 880,006,809.30 is: 1,320,010,213.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,775,999.70 : 1,469,663,999.55 = 880,006,809.30 : x
  2. Step 2: Convert to fraction form
    979,775,999.70/1,469,663,999.55 = 880,006,809.30/x
  3. Step 3: Cross multiply
    979,775,999.70x = 1,469,663,999.55 × 880,006,809.30
  4. Step 4: Simplify right side
    979,775,999.70x = 1,293,314,326,987,072,000
  5. Step 5: Solve for x
    x = 1,293,314,326,987,072,000/979,775,999.70
  6. Step 6: Final answer
    x = 1,320,010,213.95

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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.