Home / 12,820,812.60-19,193,894.10-12,447,564.60

Finding the Fourth Proportional to 12,820,812.60, 19,193,894.10 and 12,447,564.60

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Solution

The fourth proportional to 12,820,812.60, 19,193,894.10 and 12,447,564.60 is: 18,635,108.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,820,812.60 : 19,193,894.10 = 12,447,564.60 : x
  2. Step 2: Convert to fraction form
    12,820,812.60/19,193,894.10 = 12,447,564.60/x
  3. Step 3: Cross multiply
    12,820,812.60x = 19,193,894.10 × 12,447,564.60
  4. Step 4: Simplify right side
    12,820,812.60x = 238,917,236,735,308.88
  5. Step 5: Solve for x
    x = 238,917,236,735,308.88/12,820,812.60
  6. Step 6: Final answer
    x = 18,635,108.72

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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.