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Finding the Fourth Proportional to 12,480,640.60, 17,510,688.20 and 12,480,640.60

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Solution

The fourth proportional to 12,480,640.60, 17,510,688.20 and 12,480,640.60 is: 17,510,688.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480,640.60 : 17,510,688.20 = 12,480,640.60 : x
  2. Step 2: Convert to fraction form
    12,480,640.60/17,510,688.20 = 12,480,640.60/x
  3. Step 3: Cross multiply
    12,480,640.60x = 17,510,688.20 × 12,480,640.60
  4. Step 4: Simplify right side
    12,480,640.60x = 218,544,606,082,860.91
  5. Step 5: Solve for x
    x = 218,544,606,082,860.91/12,480,640.60
  6. Step 6: Final answer
    x = 17,510,688.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.