Home / 39,870,774.26-55,021,690.50-21,536,059.76

Finding the Fourth Proportional to 39,870,774.26, 55,021,690.50 and 21,536,059.76

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Solution

The fourth proportional to 39,870,774.26, 55,021,690.50 and 21,536,059.76 is: 29,719,774.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,870,774.26 : 55,021,690.50 = 21,536,059.76 : x
  2. Step 2: Convert to fraction form
    39,870,774.26/55,021,690.50 = 21,536,059.76/x
  3. Step 3: Cross multiply
    39,870,774.26x = 55,021,690.50 × 21,536,059.76
  4. Step 4: Simplify right side
    39,870,774.26x = 1,184,950,414,704,224.25
  5. Step 5: Solve for x
    x = 1,184,950,414,704,224.25/39,870,774.26
  6. Step 6: Final answer
    x = 29,719,774.36

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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.