Home / 212,831,733.60-319,247,600.40-125,303,400.90

Finding the Fourth Proportional to 212,831,733.60, 319,247,600.40 and 125,303,400.90

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Solution

The fourth proportional to 212,831,733.60, 319,247,600.40 and 125,303,400.90 is: 187,955,101.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,831,733.60 : 319,247,600.40 = 125,303,400.90 : x
  2. Step 2: Convert to fraction form
    212,831,733.60/319,247,600.40 = 125,303,400.90/x
  3. Step 3: Cross multiply
    212,831,733.60x = 319,247,600.40 × 125,303,400.90
  4. Step 4: Simplify right side
    212,831,733.60x = 40,002,810,059,284,200
  5. Step 5: Solve for x
    x = 40,002,810,059,284,200/212,831,733.60
  6. Step 6: Final answer
    x = 187,955,101.35

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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.