Home / 18,927,402.61-28,379,733.77-7,399,139.47

Finding the Fourth Proportional to 18,927,402.61, 28,379,733.77 and 7,399,139.47

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Solution

The fourth proportional to 18,927,402.61, 28,379,733.77 and 7,399,139.47 is: 11,094,264.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,927,402.61 : 28,379,733.77 = 7,399,139.47 : x
  2. Step 2: Convert to fraction form
    18,927,402.61/28,379,733.77 = 7,399,139.47/x
  3. Step 3: Cross multiply
    18,927,402.61x = 28,379,733.77 × 7,399,139.47
  4. Step 4: Simplify right side
    18,927,402.61x = 209,985,608,384,205.66
  5. Step 5: Solve for x
    x = 209,985,608,384,205.66/18,927,402.61
  6. Step 6: Final answer
    x = 11,094,264.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.