Home / 8,213,490.72-12,319,294.86-2,148,807.69

Finding the Fourth Proportional to 8,213,490.72, 12,319,294.86 and 2,148,807.69

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Solution

The fourth proportional to 8,213,490.72, 12,319,294.86 and 2,148,807.69 is: 3,222,965.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,213,490.72 : 12,319,294.86 = 2,148,807.69 : x
  2. Step 2: Convert to fraction form
    8,213,490.72/12,319,294.86 = 2,148,807.69/x
  3. Step 3: Cross multiply
    8,213,490.72x = 12,319,294.86 × 2,148,807.69
  4. Step 4: Simplify right side
    8,213,490.72x = 26,471,795,530,545.47
  5. Step 5: Solve for x
    x = 26,471,795,530,545.47/8,213,490.72
  6. Step 6: Final answer
    x = 3,222,965.29

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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.