Home / 13,203,427.20-19,805,140.80-12,725,130.30

Finding the Fourth Proportional to 13,203,427.20, 19,805,140.80 and 12,725,130.30

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Solution

The fourth proportional to 13,203,427.20, 19,805,140.80 and 12,725,130.30 is: 19,087,695.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,203,427.20 : 19,805,140.80 = 12,725,130.30 : x
  2. Step 2: Convert to fraction form
    13,203,427.20/19,805,140.80 = 12,725,130.30/x
  3. Step 3: Cross multiply
    13,203,427.20x = 19,805,140.80 × 12,725,130.30
  4. Step 4: Simplify right side
    13,203,427.20x = 252,022,997,289,846.25
  5. Step 5: Solve for x
    x = 252,022,997,289,846.25/13,203,427.20
  6. Step 6: Final answer
    x = 19,087,695.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.