Home / 39,078,011.30-53,934,110.96-21,679,961.56

Finding the Fourth Proportional to 39,078,011.30, 53,934,110.96 and 21,679,961.56

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Solution

The fourth proportional to 39,078,011.30, 53,934,110.96 and 21,679,961.56 is: 29,921,928.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,078,011.30 : 53,934,110.96 = 21,679,961.56 : x
  2. Step 2: Convert to fraction form
    39,078,011.30/53,934,110.96 = 21,679,961.56/x
  3. Step 3: Cross multiply
    39,078,011.30x = 53,934,110.96 × 21,679,961.56
  4. Step 4: Simplify right side
    39,078,011.30x = 1,169,289,452,142,339.75
  5. Step 5: Solve for x
    x = 1,169,289,452,142,339.75/39,078,011.30
  6. Step 6: Final answer
    x = 29,921,928.30

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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.