Home / 78,583,879.23-107,660,437.44-75,638,495.67

Finding the Fourth Proportional to 78,583,879.23, 107,660,437.44 and 75,638,495.67

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Solution

The fourth proportional to 78,583,879.23, 107,660,437.44 and 75,638,495.67 is: 103,625,242.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,583,879.23 : 107,660,437.44 = 75,638,495.67 : x
  2. Step 2: Convert to fraction form
    78,583,879.23/107,660,437.44 = 75,638,495.67/x
  3. Step 3: Cross multiply
    78,583,879.23x = 107,660,437.44 × 75,638,495.67
  4. Step 4: Simplify right side
    78,583,879.23x = 8,143,273,531,135,746
  5. Step 5: Solve for x
    x = 8,143,273,531,135,746/78,583,879.23
  6. Step 6: Final answer
    x = 103,625,242.36

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.