Home / 13,487,608.40-18,608,650.28-8,255,161.80

Finding the Fourth Proportional to 13,487,608.40, 18,608,650.28 and 8,255,161.80

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Solution

The fourth proportional to 13,487,608.40, 18,608,650.28 and 8,255,161.80 is: 11,389,522.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,487,608.40 : 18,608,650.28 = 8,255,161.80 : x
  2. Step 2: Convert to fraction form
    13,487,608.40/18,608,650.28 = 8,255,161.80/x
  3. Step 3: Cross multiply
    13,487,608.40x = 18,608,650.28 × 8,255,161.80
  4. Step 4: Simplify right side
    13,487,608.40x = 153,617,418,860,913.91
  5. Step 5: Solve for x
    x = 153,617,418,860,913.91/13,487,608.40
  6. Step 6: Final answer
    x = 11,389,522.46

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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.