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Finding the Fourth Proportional to 18,892,070.22, 28,324,957.02 and 8,370,030.54

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Solution

The fourth proportional to 18,892,070.22, 28,324,957.02 and 8,370,030.54 is: 12,549,220.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,892,070.22 : 28,324,957.02 = 8,370,030.54 : x
  2. Step 2: Convert to fraction form
    18,892,070.22/28,324,957.02 = 8,370,030.54/x
  3. Step 3: Cross multiply
    18,892,070.22x = 28,324,957.02 × 8,370,030.54
  4. Step 4: Simplify right side
    18,892,070.22x = 237,080,755,301,587.38
  5. Step 5: Solve for x
    x = 237,080,755,301,587.38/18,892,070.22
  6. Step 6: Final answer
    x = 12,549,220.52

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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.