Home / 12,945,309.80-19,417,964.70-5,371,485.80

Finding the Fourth Proportional to 12,945,309.80, 19,417,964.70 and 5,371,485.80

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Solution

The fourth proportional to 12,945,309.80, 19,417,964.70 and 5,371,485.80 is: 8,057,228.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,945,309.80 : 19,417,964.70 = 5,371,485.80 : x
  2. Step 2: Convert to fraction form
    12,945,309.80/19,417,964.70 = 5,371,485.80/x
  3. Step 3: Cross multiply
    12,945,309.80x = 19,417,964.70 × 5,371,485.80
  4. Step 4: Simplify right side
    12,945,309.80x = 104,303,321,650,951.25
  5. Step 5: Solve for x
    x = 104,303,321,650,951.25/12,945,309.80
  6. Step 6: Final answer
    x = 8,057,228.70

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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.