Home / 12,606,400.80-18,909,601.20-12,511,922.40

Finding the Fourth Proportional to 12,606,400.80, 18,909,601.20 and 12,511,922.40

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Solution

The fourth proportional to 12,606,400.80, 18,909,601.20 and 12,511,922.40 is: 18,767,883.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,606,400.80 : 18,909,601.20 = 12,511,922.40 : x
  2. Step 2: Convert to fraction form
    12,606,400.80/18,909,601.20 = 12,511,922.40/x
  3. Step 3: Cross multiply
    12,606,400.80x = 18,909,601.20 × 12,511,922.40
  4. Step 4: Simplify right side
    12,606,400.80x = 236,595,462,829,346.88
  5. Step 5: Solve for x
    x = 236,595,462,829,346.88/12,606,400.80
  6. Step 6: Final answer
    x = 18,767,883.60

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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.