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Finding the Fourth Proportional to 14,012,458.20, 21,018,687.30 and 14,012,458.20

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Solution

The fourth proportional to 14,012,458.20, 21,018,687.30 and 14,012,458.20 is: 21,018,687.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,012,458.20 : 21,018,687.30 = 14,012,458.20 : x
  2. Step 2: Convert to fraction form
    14,012,458.20/21,018,687.30 = 14,012,458.20/x
  3. Step 3: Cross multiply
    14,012,458.20x = 21,018,687.30 × 14,012,458.20
  4. Step 4: Simplify right side
    14,012,458.20x = 294,523,477,210,120.88
  5. Step 5: Solve for x
    x = 294,523,477,210,120.88/14,012,458.20
  6. Step 6: Final answer
    x = 21,018,687.30

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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.