Home / 72,220,682.40-108,331,023.60-43,452,009.60

Finding the Fourth Proportional to 72,220,682.40, 108,331,023.60 and 43,452,009.60

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Solution

The fourth proportional to 72,220,682.40, 108,331,023.60 and 43,452,009.60 is: 65,178,014.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,220,682.40 : 108,331,023.60 = 43,452,009.60 : x
  2. Step 2: Convert to fraction form
    72,220,682.40/108,331,023.60 = 43,452,009.60/x
  3. Step 3: Cross multiply
    72,220,682.40x = 108,331,023.60 × 43,452,009.60
  4. Step 4: Simplify right side
    72,220,682.40x = 4,707,200,677,445,026
  5. Step 5: Solve for x
    x = 4,707,200,677,445,026/72,220,682.40
  6. Step 6: Final answer
    x = 65,178,014.40

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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.