Home / 1,036,253,702.72-1,555,079,947.91-405,907,573.48

Finding the Fourth Proportional to 1,036,253,702.72, 1,555,079,947.91 and 405,907,573.48

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Solution

The fourth proportional to 1,036,253,702.72, 1,555,079,947.91 and 405,907,573.48 is: 609,135,317.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036,253,702.72 : 1,555,079,947.91 = 405,907,573.48 : x
  2. Step 2: Convert to fraction form
    1,036,253,702.72/1,555,079,947.91 = 405,907,573.48/x
  3. Step 3: Cross multiply
    1,036,253,702.72x = 1,555,079,947.91 × 405,907,573.48
  4. Step 4: Simplify right side
    1,036,253,702.72x = 631,218,728,223,553,024
  5. Step 5: Solve for x
    x = 631,218,728,223,553,024/1,036,253,702.72
  6. Step 6: Final answer
    x = 609,135,317.51

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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.