Home / 21,315,798.54-29,416,104.45-13,052,845.98

Finding the Fourth Proportional to 21,315,798.54, 29,416,104.45 and 13,052,845.98

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Solution

The fourth proportional to 21,315,798.54, 29,416,104.45 and 13,052,845.98 is: 18,013,112.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,315,798.54 : 29,416,104.45 = 13,052,845.98 : x
  2. Step 2: Convert to fraction form
    21,315,798.54/29,416,104.45 = 13,052,845.98/x
  3. Step 3: Cross multiply
    21,315,798.54x = 29,416,104.45 × 13,052,845.98
  4. Step 4: Simplify right side
    21,315,798.54x = 383,963,880,717,442.62
  5. Step 5: Solve for x
    x = 383,963,880,717,442.62/21,315,798.54
  6. Step 6: Final answer
    x = 18,013,112.67

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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.