Home / 13,560,835.38-18,714,103.37-7,980,315.31

Finding the Fourth Proportional to 13,560,835.38, 18,714,103.37 and 7,980,315.31

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Solution

The fourth proportional to 13,560,835.38, 18,714,103.37 and 7,980,315.31 is: 11,012,923.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,560,835.38 : 18,714,103.37 = 7,980,315.31 : x
  2. Step 2: Convert to fraction form
    13,560,835.38/18,714,103.37 = 7,980,315.31/x
  3. Step 3: Cross multiply
    13,560,835.38x = 18,714,103.37 × 7,980,315.31
  4. Step 4: Simplify right side
    13,560,835.38x = 149,344,445,636,533.59
  5. Step 5: Solve for x
    x = 149,344,445,636,533.59/13,560,835.38
  6. Step 6: Final answer
    x = 11,012,923.72

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1.5x scale

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.