Home / 12,959,877.60-19,439,816.40-12,462,213.60

Finding the Fourth Proportional to 12,959,877.60, 19,439,816.40 and 12,462,213.60

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Solution

The fourth proportional to 12,959,877.60, 19,439,816.40 and 12,462,213.60 is: 18,693,320.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,959,877.60 : 19,439,816.40 = 12,462,213.60 : x
  2. Step 2: Convert to fraction form
    12,959,877.60/19,439,816.40 = 12,462,213.60/x
  3. Step 3: Cross multiply
    12,959,877.60x = 19,439,816.40 × 12,462,213.60
  4. Step 4: Simplify right side
    12,959,877.60x = 242,263,144,321,583
  5. Step 5: Solve for x
    x = 242,263,144,321,583/12,959,877.60
  6. Step 6: Final answer
    x = 18,693,320.40

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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.