Home / 19,571,251.20-29,356,876.80-12,768,806.40

Finding the Fourth Proportional to 19,571,251.20, 29,356,876.80 and 12,768,806.40

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Solution

The fourth proportional to 19,571,251.20, 29,356,876.80 and 12,768,806.40 is: 19,153,209.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,571,251.20 : 29,356,876.80 = 12,768,806.40 : x
  2. Step 2: Convert to fraction form
    19,571,251.20/29,356,876.80 = 12,768,806.40/x
  3. Step 3: Cross multiply
    19,571,251.20x = 29,356,876.80 × 12,768,806.40
  4. Step 4: Simplify right side
    19,571,251.20x = 374,852,276,367,851.56
  5. Step 5: Solve for x
    x = 374,852,276,367,851.56/19,571,251.20
  6. Step 6: Final answer
    x = 19,153,209.60

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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.