Home / 13,622,182.58-18,798,758.61-7,427,178.65

Finding the Fourth Proportional to 13,622,182.58, 18,798,758.61 and 7,427,178.65

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Solution

The fourth proportional to 13,622,182.58, 18,798,758.61 and 7,427,178.65 is: 10,249,586.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,622,182.58 : 18,798,758.61 = 7,427,178.65 : x
  2. Step 2: Convert to fraction form
    13,622,182.58/18,798,758.61 = 7,427,178.65/x
  3. Step 3: Cross multiply
    13,622,182.58x = 18,798,758.61 × 7,427,178.65
  4. Step 4: Simplify right side
    13,622,182.58x = 139,621,738,594,695.67
  5. Step 5: Solve for x
    x = 139,621,738,594,695.67/13,622,182.58
  6. Step 6: Final answer
    x = 10,249,586.49

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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.