Home / 28,405,545.89-39,199,636.17-15,352,804.80

Finding the Fourth Proportional to 28,405,545.89, 39,199,636.17 and 15,352,804.80

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Solution

The fourth proportional to 28,405,545.89, 39,199,636.17 and 15,352,804.80 is: 21,186,861.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,405,545.89 : 39,199,636.17 = 15,352,804.80 : x
  2. Step 2: Convert to fraction form
    28,405,545.89/39,199,636.17 = 15,352,804.80/x
  3. Step 3: Cross multiply
    28,405,545.89x = 39,199,636.17 × 15,352,804.80
  4. Step 4: Simplify right side
    28,405,545.89x = 601,824,362,349,029.62
  5. Step 5: Solve for x
    x = 601,824,362,349,029.62/28,405,545.89
  6. Step 6: Final answer
    x = 21,186,861.35

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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.