Home / 250,140,104.47-345,193,376.93-138,638,143.95

Finding the Fourth Proportional to 250,140,104.47, 345,193,376.93 and 138,638,143.95

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Solution

The fourth proportional to 250,140,104.47, 345,193,376.93 and 138,638,143.95 is: 191,320,656.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,140,104.47 : 345,193,376.93 = 138,638,143.95 : x
  2. Step 2: Convert to fraction form
    250,140,104.47/345,193,376.93 = 138,638,143.95/x
  3. Step 3: Cross multiply
    250,140,104.47x = 345,193,376.93 × 138,638,143.95
  4. Step 4: Simplify right side
    250,140,104.47x = 47,856,969,081,407,944
  5. Step 5: Solve for x
    x = 47,856,969,081,407,944/250,140,104.47
  6. Step 6: Final answer
    x = 191,320,656.81

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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.