Home / 14,042,428.20-21,040,022.70-12,011,142.60

Finding the Fourth Proportional to 14,042,428.20, 21,040,022.70 and 12,011,142.60

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Solution

The fourth proportional to 14,042,428.20, 21,040,022.70 and 12,011,142.60 is: 17,996,510.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,042,428.20 : 21,040,022.70 = 12,011,142.60 : x
  2. Step 2: Convert to fraction form
    14,042,428.20/21,040,022.70 = 12,011,142.60/x
  3. Step 3: Cross multiply
    14,042,428.20x = 21,040,022.70 × 12,011,142.60
  4. Step 4: Simplify right side
    14,042,428.20x = 252,714,712,956,937
  5. Step 5: Solve for x
    x = 252,714,712,956,937/14,042,428.20
  6. Step 6: Final answer
    x = 17,996,510.96

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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.