Home / 18,870,255.86-26,034,689.93-15,379,592.45

Finding the Fourth Proportional to 18,870,255.86, 26,034,689.93 and 15,379,592.45

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Solution

The fourth proportional to 18,870,255.86, 26,034,689.93 and 15,379,592.45 is: 21,218,732.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,870,255.86 : 26,034,689.93 = 15,379,592.45 : x
  2. Step 2: Convert to fraction form
    18,870,255.86/26,034,689.93 = 15,379,592.45/x
  3. Step 3: Cross multiply
    18,870,255.86x = 26,034,689.93 × 15,379,592.45
  4. Step 4: Simplify right side
    18,870,255.86x = 400,402,920,478,447.62
  5. Step 5: Solve for x
    x = 400,402,920,478,447.62/18,870,255.86
  6. Step 6: Final answer
    x = 21,218,732.99

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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.