Home / 13,269,630.31-18,311,500.80-7,389,567.79

Finding the Fourth Proportional to 13,269,630.31, 18,311,500.80 and 7,389,567.79

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Solution

The fourth proportional to 13,269,630.31, 18,311,500.80 and 7,389,567.79 is: 10,197,275.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,269,630.31 : 18,311,500.80 = 7,389,567.79 : x
  2. Step 2: Convert to fraction form
    13,269,630.31/18,311,500.80 = 7,389,567.79/x
  3. Step 3: Cross multiply
    13,269,630.31x = 18,311,500.80 × 7,389,567.79
  4. Step 4: Simplify right side
    13,269,630.31x = 135,314,076,452,460.48
  5. Step 5: Solve for x
    x = 135,314,076,452,460.48/13,269,630.31
  6. Step 6: Final answer
    x = 10,197,275.53

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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.