Home / 13,661,187.40-20,515,400.70-7,283,895.40

Finding the Fourth Proportional to 13,661,187.40, 20,515,400.70 and 7,283,895.40

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Solution

The fourth proportional to 13,661,187.40, 20,515,400.70 and 7,283,895.40 is: 10,938,436.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,661,187.40 : 20,515,400.70 = 7,283,895.40 : x
  2. Step 2: Convert to fraction form
    13,661,187.40/20,515,400.70 = 7,283,895.40/x
  3. Step 3: Cross multiply
    13,661,187.40x = 20,515,400.70 × 7,283,895.40
  4. Step 4: Simplify right side
    13,661,187.40x = 149,432,032,787,886.78
  5. Step 5: Solve for x
    x = 149,432,032,787,886.78/13,661,187.40
  6. Step 6: Final answer
    x = 10,938,436.64

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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.