Home / 19,178,916.91-28,768,624.65-6,399,421.61

Finding the Fourth Proportional to 19,178,916.91, 28,768,624.65 and 6,399,421.61

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Solution

The fourth proportional to 19,178,916.91, 28,768,624.65 and 6,399,421.61 is: 9,599,215.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,178,916.91 : 28,768,624.65 = 6,399,421.61 : x
  2. Step 2: Convert to fraction form
    19,178,916.91/28,768,624.65 = 6,399,421.61/x
  3. Step 3: Cross multiply
    19,178,916.91x = 28,768,624.65 × 6,399,421.61
  4. Step 4: Simplify right side
    19,178,916.91x = 184,102,558,131,345.56
  5. Step 5: Solve for x
    x = 184,102,558,131,345.56/19,178,916.91
  6. Step 6: Final answer
    x = 9,599,215.59

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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.