Home / 12,878,153.60-19,317,230.40-11,422,486.40

Finding the Fourth Proportional to 12,878,153.60, 19,317,230.40 and 11,422,486.40

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Solution

The fourth proportional to 12,878,153.60, 19,317,230.40 and 11,422,486.40 is: 17,133,729.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,878,153.60 : 19,317,230.40 = 11,422,486.40 : x
  2. Step 2: Convert to fraction form
    12,878,153.60/19,317,230.40 = 11,422,486.40/x
  3. Step 3: Cross multiply
    12,878,153.60x = 19,317,230.40 × 11,422,486.40
  4. Step 4: Simplify right side
    12,878,153.60x = 220,650,801,529,666.56
  5. Step 5: Solve for x
    x = 220,650,801,529,666.56/12,878,153.60
  6. Step 6: Final answer
    x = 17,133,729.60

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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.