Home / 31,508,840.10-47,235,266.55-18,715,764.90

Finding the Fourth Proportional to 31,508,840.10, 47,235,266.55 and 18,715,764.90

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Solution

The fourth proportional to 31,508,840.10, 47,235,266.55 and 18,715,764.90 is: 28,057,019.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,508,840.10 : 47,235,266.55 = 18,715,764.90 : x
  2. Step 2: Convert to fraction form
    31,508,840.10/47,235,266.55 = 18,715,764.90/x
  3. Step 3: Cross multiply
    31,508,840.10x = 47,235,266.55 × 18,715,764.90
  4. Step 4: Simplify right side
    31,508,840.10x = 884,044,143,738,634
  5. Step 5: Solve for x
    x = 884,044,143,738,634/31,508,840.10
  6. Step 6: Final answer
    x = 28,057,019.58

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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.