Home / 12,178,562.51-16,800,039.21-7,530,864.93

Finding the Fourth Proportional to 12,178,562.51, 16,800,039.21 and 7,530,864.93

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Solution

The fourth proportional to 12,178,562.51, 16,800,039.21 and 7,530,864.93 is: 10,388,650.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,178,562.51 : 16,800,039.21 = 7,530,864.93 : x
  2. Step 2: Convert to fraction form
    12,178,562.51/16,800,039.21 = 7,530,864.93/x
  3. Step 3: Cross multiply
    12,178,562.51x = 16,800,039.21 × 7,530,864.93
  4. Step 4: Simplify right side
    12,178,562.51x = 126,518,826,109,213.91
  5. Step 5: Solve for x
    x = 126,518,826,109,213.91/12,178,562.51
  6. Step 6: Final answer
    x = 10,388,650.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.