Home / 12,449,912.40-18,618,881.40-10,434,373.20

Finding the Fourth Proportional to 12,449,912.40, 18,618,881.40 and 10,434,373.20

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Solution

The fourth proportional to 12,449,912.40, 18,618,881.40 and 10,434,373.20 is: 15,604,636.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,449,912.40 : 18,618,881.40 = 10,434,373.20 : x
  2. Step 2: Convert to fraction form
    12,449,912.40/18,618,881.40 = 10,434,373.20/x
  3. Step 3: Cross multiply
    12,449,912.40x = 18,618,881.40 × 10,434,373.20
  4. Step 4: Simplify right side
    12,449,912.40x = 194,276,357,094,138.44
  5. Step 5: Solve for x
    x = 194,276,357,094,138.44/12,449,912.40
  6. Step 6: Final answer
    x = 15,604,636.47

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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.