Home / 21,078,865.44-29,087,482.86-11,787,201

Finding the Fourth Proportional to 21,078,865.44, 29,087,482.86 and 11,787,201

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Solution

The fourth proportional to 21,078,865.44, 29,087,482.86 and 11,787,201 is: 16,265,581.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,078,865.44 : 29,087,482.86 = 11,787,201 : x
  2. Step 2: Convert to fraction form
    21,078,865.44/29,087,482.86 = 11,787,201/x
  3. Step 3: Cross multiply
    21,078,865.44x = 29,087,482.86 × 11,787,201
  4. Step 4: Simplify right side
    21,078,865.44x = 342,860,007,054,874.88
  5. Step 5: Solve for x
    x = 342,860,007,054,874.88/21,078,865.44
  6. Step 6: Final answer
    x = 16,265,581.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.