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Finding the Fourth Proportional to 18,720,192, 28,080,288 and 4,536,768

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Solution

The fourth proportional to 18,720,192, 28,080,288 and 4,536,768 is: 6,805,152

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720,192 : 28,080,288 = 4,536,768 : x
  2. Step 2: Convert to fraction form
    18,720,192/28,080,288 = 4,536,768/x
  3. Step 3: Cross multiply
    18,720,192x = 28,080,288 × 4,536,768
  4. Step 4: Simplify right side
    18,720,192x = 127,393,752,029,184
  5. Step 5: Solve for x
    x = 127,393,752,029,184/18,720,192
  6. Step 6: Final answer
    x = 6,805,152

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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.