Home / 39,078,014.30-53,934,115.10-21,679,964.57

Finding the Fourth Proportional to 39,078,014.30, 53,934,115.10 and 21,679,964.57

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Solution

The fourth proportional to 39,078,014.30, 53,934,115.10 and 21,679,964.57 is: 29,921,932.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,078,014.30 : 53,934,115.10 = 21,679,964.57 : x
  2. Step 2: Convert to fraction form
    39,078,014.30/53,934,115.10 = 21,679,964.57/x
  3. Step 3: Cross multiply
    39,078,014.30x = 53,934,115.10 × 21,679,964.57
  4. Step 4: Simplify right side
    39,078,014.30x = 1,169,289,704,104,231.75
  5. Step 5: Solve for x
    x = 1,169,289,704,104,231.75/39,078,014.30
  6. Step 6: Final answer
    x = 29,921,932.45

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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.