Home / 13,172,345.46-18,178,051.95-7,211,652.80

Finding the Fourth Proportional to 13,172,345.46, 18,178,051.95 and 7,211,652.80

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Solution

The fourth proportional to 13,172,345.46, 18,178,051.95 and 7,211,652.80 is: 9,952,198.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172,345.46 : 18,178,051.95 = 7,211,652.80 : x
  2. Step 2: Convert to fraction form
    13,172,345.46/18,178,051.95 = 7,211,652.80/x
  3. Step 3: Cross multiply
    13,172,345.46x = 18,178,051.95 × 7,211,652.80
  4. Step 4: Simplify right side
    13,172,345.46x = 131,093,799,152,872.69
  5. Step 5: Solve for x
    x = 131,093,799,152,872.69/13,172,345.46
  6. Step 6: Final answer
    x = 9,952,198.68

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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.