Home / 12,455,429.10-18,683,143.65-10,471,382.70

Finding the Fourth Proportional to 12,455,429.10, 18,683,143.65 and 10,471,382.70

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Solution

The fourth proportional to 12,455,429.10, 18,683,143.65 and 10,471,382.70 is: 15,707,074.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455,429.10 : 18,683,143.65 = 10,471,382.70 : x
  2. Step 2: Convert to fraction form
    12,455,429.10/18,683,143.65 = 10,471,382.70/x
  3. Step 3: Cross multiply
    12,455,429.10x = 18,683,143.65 × 10,471,382.70
  4. Step 4: Simplify right side
    12,455,429.10x = 195,638,347,198,224.81
  5. Step 5: Solve for x
    x = 195,638,347,198,224.81/12,455,429.10
  6. Step 6: Final answer
    x = 15,707,074.05

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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.