Home / 12,074,574.80-18,132,857.40-6,405,870.80

Finding the Fourth Proportional to 12,074,574.80, 18,132,857.40 and 6,405,870.80

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Solution

The fourth proportional to 12,074,574.80, 18,132,857.40 and 6,405,870.80 is: 9,619,944.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,074,574.80 : 18,132,857.40 = 6,405,870.80 : x
  2. Step 2: Convert to fraction form
    12,074,574.80/18,132,857.40 = 6,405,870.80/x
  3. Step 3: Cross multiply
    12,074,574.80x = 18,132,857.40 × 6,405,870.80
  4. Step 4: Simplify right side
    12,074,574.80x = 116,156,741,739,223.91
  5. Step 5: Solve for x
    x = 116,156,741,739,223.91/12,074,574.80
  6. Step 6: Final answer
    x = 9,619,944.69

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1.5x scale

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.