Home / 78,269,366.70-117,418,483.00-25,749,993.74

Finding the Fourth Proportional to 78,269,366.70, 117,418,483.00 and 25,749,993.74

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Solution

The fourth proportional to 78,269,366.70, 117,418,483.00 and 25,749,993.74 is: 38,629,738.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,269,366.70 : 117,418,483.00 = 25,749,993.74 : x
  2. Step 2: Convert to fraction form
    78,269,366.70/117,418,483.00 = 25,749,993.74/x
  3. Step 3: Cross multiply
    78,269,366.70x = 117,418,483.00 × 25,749,993.74
  4. Step 4: Simplify right side
    78,269,366.70x = 3,023,525,201,655,391.50
  5. Step 5: Solve for x
    x = 3,023,525,201,655,391.50/78,269,366.70
  6. Step 6: Final answer
    x = 38,629,738.93

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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.