Home / 13,395,563.45-18,483,636.80-7,890,034.55

Finding the Fourth Proportional to 13,395,563.45, 18,483,636.80 and 7,890,034.55

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Solution

The fourth proportional to 13,395,563.45, 18,483,636.80 and 7,890,034.55 is: 10,886,927.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,395,563.45 : 18,483,636.80 = 7,890,034.55 : x
  2. Step 2: Convert to fraction form
    13,395,563.45/18,483,636.80 = 7,890,034.55/x
  3. Step 3: Cross multiply
    13,395,563.45x = 18,483,636.80 × 7,890,034.55
  4. Step 4: Simplify right side
    13,395,563.45x = 145,836,532,829,783.09
  5. Step 5: Solve for x
    x = 145,836,532,829,783.09/13,395,563.45
  6. Step 6: Final answer
    x = 10,886,927.86

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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.