Home / 17,640,479.30-26,422,140.26-12,507,349.72

Finding the Fourth Proportional to 17,640,479.30, 26,422,140.26 and 12,507,349.72

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Solution

The fourth proportional to 17,640,479.30, 26,422,140.26 and 12,507,349.72 is: 18,733,671.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,640,479.30 : 26,422,140.26 = 12,507,349.72 : x
  2. Step 2: Convert to fraction form
    17,640,479.30/26,422,140.26 = 12,507,349.72/x
  3. Step 3: Cross multiply
    17,640,479.30x = 26,422,140.26 × 12,507,349.72
  4. Step 4: Simplify right side
    17,640,479.30x = 330,470,948,582,711.75
  5. Step 5: Solve for x
    x = 330,470,948,582,711.75/17,640,479.30
  6. Step 6: Final answer
    x = 18,733,671.74

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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.