Home / 12,457,145.70-18,685,718.55-9,055,923.30

Finding the Fourth Proportional to 12,457,145.70, 18,685,718.55 and 9,055,923.30

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Solution

The fourth proportional to 12,457,145.70, 18,685,718.55 and 9,055,923.30 is: 13,583,884.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457,145.70 : 18,685,718.55 = 9,055,923.30 : x
  2. Step 2: Convert to fraction form
    12,457,145.70/18,685,718.55 = 9,055,923.30/x
  3. Step 3: Cross multiply
    12,457,145.70x = 18,685,718.55 × 9,055,923.30
  4. Step 4: Simplify right side
    12,457,145.70x = 169,216,433,994,187.25
  5. Step 5: Solve for x
    x = 169,216,433,994,187.25/12,457,145.70
  6. Step 6: Final answer
    x = 13,583,884.95

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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.