Home / 13,945,643.60-20,918,465.40-8,276,939.60

Finding the Fourth Proportional to 13,945,643.60, 20,918,465.40 and 8,276,939.60

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Solution

The fourth proportional to 13,945,643.60, 20,918,465.40 and 8,276,939.60 is: 12,415,409.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,945,643.60 : 20,918,465.40 = 8,276,939.60 : x
  2. Step 2: Convert to fraction form
    13,945,643.60/20,918,465.40 = 8,276,939.60/x
  3. Step 3: Cross multiply
    13,945,643.60x = 20,918,465.40 × 8,276,939.60
  4. Step 4: Simplify right side
    13,945,643.60x = 173,140,874,640,489.81
  5. Step 5: Solve for x
    x = 173,140,874,640,489.81/13,945,643.60
  6. Step 6: Final answer
    x = 12,415,409.40

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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.