Home / 12,962,693.40-19,434,708.90-7,284,658.20

Finding the Fourth Proportional to 12,962,693.40, 19,434,708.90 and 7,284,658.20

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Solution

The fourth proportional to 12,962,693.40, 19,434,708.90 and 7,284,658.20 is: 10,921,743.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,962,693.40 : 19,434,708.90 = 7,284,658.20 : x
  2. Step 2: Convert to fraction form
    12,962,693.40/19,434,708.90 = 7,284,658.20/x
  3. Step 3: Cross multiply
    12,962,693.40x = 19,434,708.90 × 7,284,658.20
  4. Step 4: Simplify right side
    12,962,693.40x = 141,575,211,552,997.97
  5. Step 5: Solve for x
    x = 141,575,211,552,997.97/12,962,693.40
  6. Step 6: Final answer
    x = 10,921,743.44

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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.