Home / 989,539,004.98-1,366,028,752.26-571,770,479.26

Finding the Fourth Proportional to 989,539,004.98, 1,366,028,752.26 and 571,770,479.26

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Solution

The fourth proportional to 989,539,004.98, 1,366,028,752.26 and 571,770,479.26 is: 789,311,902.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,539,004.98 : 1,366,028,752.26 = 571,770,479.26 : x
  2. Step 2: Convert to fraction form
    989,539,004.98/1,366,028,752.26 = 571,770,479.26/x
  3. Step 3: Cross multiply
    989,539,004.98x = 1,366,028,752.26 × 571,770,479.26
  4. Step 4: Simplify right side
    989,539,004.98x = 781,054,914,362,640,000
  5. Step 5: Solve for x
    x = 781,054,914,362,640,000/989,539,004.98
  6. Step 6: Final answer
    x = 789,311,902.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.