Home / 39,899,803.09-55,061,703.38-21,565,088.59

Finding the Fourth Proportional to 39,899,803.09, 55,061,703.38 and 21,565,088.59

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Solution

The fourth proportional to 39,899,803.09, 55,061,703.38 and 21,565,088.59 is: 29,759,808.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,899,803.09 : 55,061,703.38 = 21,565,088.59 : x
  2. Step 2: Convert to fraction form
    39,899,803.09/55,061,703.38 = 21,565,088.59/x
  3. Step 3: Cross multiply
    39,899,803.09x = 55,061,703.38 × 21,565,088.59
  4. Step 4: Simplify right side
    39,899,803.09x = 1,187,410,511,222,260.75
  5. Step 5: Solve for x
    x = 1,187,410,511,222,260.75/39,899,803.09
  6. Step 6: Final answer
    x = 29,759,808.80

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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.