Home / 13,487,590.42-18,608,625.50-8,255,143.78

Finding the Fourth Proportional to 13,487,590.42, 18,608,625.50 and 8,255,143.78

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Solution

The fourth proportional to 13,487,590.42, 18,608,625.50 and 8,255,143.78 is: 11,389,497.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,487,590.42 : 18,608,625.50 = 8,255,143.78 : x
  2. Step 2: Convert to fraction form
    13,487,590.42/18,608,625.50 = 8,255,143.78/x
  3. Step 3: Cross multiply
    13,487,590.42x = 18,608,625.50 × 8,255,143.78
  4. Step 4: Simplify right side
    13,487,590.42x = 153,616,879,154,653.12
  5. Step 5: Solve for x
    x = 153,616,879,154,653.12/13,487,590.42
  6. Step 6: Final answer
    x = 11,389,497.63

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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.