Home / 31,581,218.42-43,563,890.13-19,013,523.86

Finding the Fourth Proportional to 31,581,218.42, 43,563,890.13 and 19,013,523.86

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Solution

The fourth proportional to 31,581,218.42, 43,563,890.13 and 19,013,523.86 is: 26,227,710.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,581,218.42 : 43,563,890.13 = 19,013,523.86 : x
  2. Step 2: Convert to fraction form
    31,581,218.42/43,563,890.13 = 19,013,523.86/x
  3. Step 3: Cross multiply
    31,581,218.42x = 43,563,890.13 × 19,013,523.86
  4. Step 4: Simplify right side
    31,581,218.42x = 828,303,064,421,173.50
  5. Step 5: Solve for x
    x = 828,303,064,421,173.50/31,581,218.42
  6. Step 6: Final answer
    x = 26,227,710.83

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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.