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Finding the Fourth Proportional to 9,861,484.80, 14,796,374.40 and 5,376,979.20

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Solution

The fourth proportional to 9,861,484.80, 14,796,374.40 and 5,376,979.20 is: 8,067,730.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,861,484.80 : 14,796,374.40 = 5,376,979.20 : x
  2. Step 2: Convert to fraction form
    9,861,484.80/14,796,374.40 = 5,376,979.20/x
  3. Step 3: Cross multiply
    9,861,484.80x = 14,796,374.40 × 5,376,979.20
  4. Step 4: Simplify right side
    9,861,484.80x = 79,559,797,384,212.48
  5. Step 5: Solve for x
    x = 79,559,797,384,212.48/9,861,484.80
  6. Step 6: Final answer
    x = 8,067,730.06

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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.