Home / 13,133,632.70-19,700,449.05-12,389,615.30

Finding the Fourth Proportional to 13,133,632.70, 19,700,449.05 and 12,389,615.30

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Solution

The fourth proportional to 13,133,632.70, 19,700,449.05 and 12,389,615.30 is: 18,584,422.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,133,632.70 : 19,700,449.05 = 12,389,615.30 : x
  2. Step 2: Convert to fraction form
    13,133,632.70/19,700,449.05 = 12,389,615.30/x
  3. Step 3: Cross multiply
    13,133,632.70x = 19,700,449.05 × 12,389,615.30
  4. Step 4: Simplify right side
    13,133,632.70x = 244,080,984,966,750.50
  5. Step 5: Solve for x
    x = 244,080,984,966,750.50/13,133,632.70
  6. Step 6: Final answer
    x = 18,584,422.95

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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.