Home / 15,289,583.45-21,099,879.08-8,320,554.74

Finding the Fourth Proportional to 15,289,583.45, 21,099,879.08 and 8,320,554.74

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Solution

The fourth proportional to 15,289,583.45, 21,099,879.08 and 8,320,554.74 is: 11,482,503.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,289,583.45 : 21,099,879.08 = 8,320,554.74 : x
  2. Step 2: Convert to fraction form
    15,289,583.45/21,099,879.08 = 8,320,554.74/x
  3. Step 3: Cross multiply
    15,289,583.45x = 21,099,879.08 × 8,320,554.74
  4. Step 4: Simplify right side
    15,289,583.45x = 175,562,698,892,520.84
  5. Step 5: Solve for x
    x = 175,562,698,892,520.84/15,289,583.45
  6. Step 6: Final answer
    x = 11,482,503.72

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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.