Home / 19,010,977.20-28,512,966.60-11,809,623.60

Finding the Fourth Proportional to 19,010,977.20, 28,512,966.60 and 11,809,623.60

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Solution

The fourth proportional to 19,010,977.20, 28,512,966.60 and 11,809,623.60 is: 17,712,261.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,010,977.20 : 28,512,966.60 = 11,809,623.60 : x
  2. Step 2: Convert to fraction form
    19,010,977.20/28,512,966.60 = 11,809,623.60/x
  3. Step 3: Cross multiply
    19,010,977.20x = 28,512,966.60 × 11,809,623.60
  4. Step 4: Simplify right side
    19,010,977.20x = 336,727,403,265,371.75
  5. Step 5: Solve for x
    x = 336,727,403,265,371.75/19,010,977.20
  6. Step 6: Final answer
    x = 17,712,261.70

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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.