Home / 20,903,270.10-31,342,701.69-8,108,824.38

Finding the Fourth Proportional to 20,903,270.10, 31,342,701.69 and 8,108,824.38

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Solution

The fourth proportional to 20,903,270.10, 31,342,701.69 and 8,108,824.38 is: 12,158,502.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,903,270.10 : 31,342,701.69 = 8,108,824.38 : x
  2. Step 2: Convert to fraction form
    20,903,270.10/31,342,701.69 = 8,108,824.38/x
  3. Step 3: Cross multiply
    20,903,270.10x = 31,342,701.69 × 8,108,824.38
  4. Step 4: Simplify right side
    20,903,270.10x = 254,152,463,598,939.22
  5. Step 5: Solve for x
    x = 254,152,463,598,939.22/20,903,270.10
  6. Step 6: Final answer
    x = 12,158,502.59

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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.