Home / 12,625,854.32-18,938,606.52-11,818,938.80

Finding the Fourth Proportional to 12,625,854.32, 18,938,606.52 and 11,818,938.80

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Solution

The fourth proportional to 12,625,854.32, 18,938,606.52 and 11,818,938.80 is: 17,728,244.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,625,854.32 : 18,938,606.52 = 11,818,938.80 : x
  2. Step 2: Convert to fraction form
    12,625,854.32/18,938,606.52 = 11,818,938.80/x
  3. Step 3: Cross multiply
    12,625,854.32x = 18,938,606.52 × 11,818,938.80
  4. Step 4: Simplify right side
    12,625,854.32x = 223,834,231,417,161
  5. Step 5: Solve for x
    x = 223,834,231,417,161/12,625,854.32
  6. Step 6: Final answer
    x = 17,728,244.42

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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.