Home / 18,718,644.60-28,059,366.45-13,026,911.49

Finding the Fourth Proportional to 18,718,644.60, 28,059,366.45 and 13,026,911.49

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Solution

The fourth proportional to 18,718,644.60, 28,059,366.45 and 13,026,911.49 is: 19,527,422.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,718,644.60 : 28,059,366.45 = 13,026,911.49 : x
  2. Step 2: Convert to fraction form
    18,718,644.60/28,059,366.45 = 13,026,911.49/x
  3. Step 3: Cross multiply
    18,718,644.60x = 28,059,366.45 × 13,026,911.49
  4. Step 4: Simplify right side
    18,718,644.60x = 365,526,883,209,625.50
  5. Step 5: Solve for x
    x = 365,526,883,209,625.50/18,718,644.60
  6. Step 6: Final answer
    x = 19,527,422.58

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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.