Home / 39,899,803.59-55,061,704.07-21,565,089.09

Finding the Fourth Proportional to 39,899,803.59, 55,061,704.07 and 21,565,089.09

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Solution

The fourth proportional to 39,899,803.59, 55,061,704.07 and 21,565,089.09 is: 29,759,809.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,899,803.59 : 55,061,704.07 = 21,565,089.09 : x
  2. Step 2: Convert to fraction form
    39,899,803.59/55,061,704.07 = 21,565,089.09/x
  3. Step 3: Cross multiply
    39,899,803.59x = 55,061,704.07 × 21,565,089.09
  4. Step 4: Simplify right side
    39,899,803.59x = 1,187,410,553,716,765.50
  5. Step 5: Solve for x
    x = 1,187,410,553,716,765.50/39,899,803.59
  6. Step 6: Final answer
    x = 29,759,809.49

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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.