Home / 78,888,163.60-118,276,258.20-30,347,261.20

Finding the Fourth Proportional to 78,888,163.60, 118,276,258.20 and 30,347,261.20

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Solution

The fourth proportional to 78,888,163.60, 118,276,258.20 and 30,347,261.20 is: 45,499,354.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,888,163.60 : 118,276,258.20 = 30,347,261.20 : x
  2. Step 2: Convert to fraction form
    78,888,163.60/118,276,258.20 = 30,347,261.20/x
  3. Step 3: Cross multiply
    78,888,163.60x = 118,276,258.20 × 30,347,261.20
  4. Step 4: Simplify right side
    78,888,163.60x = 3,589,360,501,354,042
  5. Step 5: Solve for x
    x = 3,589,360,501,354,042/78,888,163.60
  6. Step 6: Final answer
    x = 45,499,354.24

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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.