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Finding the Fourth Proportional to 18,965,602.85, 28,448,405.45 and 4,588,670.66

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Solution

The fourth proportional to 18,965,602.85, 28,448,405.45 and 4,588,670.66 is: 6,883,006.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,965,602.85 : 28,448,405.45 = 4,588,670.66 : x
  2. Step 2: Convert to fraction form
    18,965,602.85/28,448,405.45 = 4,588,670.66/x
  3. Step 3: Cross multiply
    18,965,602.85x = 28,448,405.45 × 4,588,670.66
  4. Step 4: Simplify right side
    18,965,602.85x = 130,540,363,264,221.23
  5. Step 5: Solve for x
    x = 130,540,363,264,221.23/18,965,602.85
  6. Step 6: Final answer
    x = 6,883,006.27

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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.