Home / 28,579,490.91-39,431,008.39-16,187,615.40

Finding the Fourth Proportional to 28,579,490.91, 39,431,008.39 and 16,187,615.40

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Solution

The fourth proportional to 28,579,490.91, 39,431,008.39 and 16,187,615.40 is: 22,333,987.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,579,490.91 : 39,431,008.39 = 16,187,615.40 : x
  2. Step 2: Convert to fraction form
    28,579,490.91/39,431,008.39 = 16,187,615.40/x
  3. Step 3: Cross multiply
    28,579,490.91x = 39,431,008.39 × 16,187,615.40
  4. Step 4: Simplify right side
    28,579,490.91x = 638,293,998,651,493.25
  5. Step 5: Solve for x
    x = 638,293,998,651,493.25/28,579,490.91
  6. Step 6: Final answer
    x = 22,333,987.71

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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.