Home / 20,678,927.55-31,004,027.24-9,158,116.79

Finding the Fourth Proportional to 20,678,927.55, 31,004,027.24 and 9,158,116.79

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Solution

The fourth proportional to 20,678,927.55, 31,004,027.24 and 9,158,116.79 is: 13,730,813.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,678,927.55 : 31,004,027.24 = 9,158,116.79 : x
  2. Step 2: Convert to fraction form
    20,678,927.55/31,004,027.24 = 9,158,116.79/x
  3. Step 3: Cross multiply
    20,678,927.55x = 31,004,027.24 × 9,158,116.79
  4. Step 4: Simplify right side
    20,678,927.55x = 283,938,502,223,450.62
  5. Step 5: Solve for x
    x = 283,938,502,223,450.62/20,678,927.55
  6. Step 6: Final answer
    x = 13,730,813.73

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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.