Home / 56,728,605.23-78,287,563.37-31,612,971.49

Finding the Fourth Proportional to 56,728,605.23, 78,287,563.37 and 31,612,971.49

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Solution

The fourth proportional to 56,728,605.23, 78,287,563.37 and 31,612,971.49 is: 43,627,064.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,728,605.23 : 78,287,563.37 = 31,612,971.49 : x
  2. Step 2: Convert to fraction form
    56,728,605.23/78,287,563.37 = 31,612,971.49/x
  3. Step 3: Cross multiply
    56,728,605.23x = 78,287,563.37 × 31,612,971.49
  4. Step 4: Simplify right side
    56,728,605.23x = 2,474,902,508,837,378.50
  5. Step 5: Solve for x
    x = 2,474,902,508,837,378.50/56,728,605.23
  6. Step 6: Final answer
    x = 43,627,064.31

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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.