Home / 65,897,712,078.20-98,846,568,117.30-21,729,437,991.80

Finding the Fourth Proportional to 65,897,712,078.20, 98,846,568,117.30 and 21,729,437,991.80

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Solution

The fourth proportional to 65,897,712,078.20, 98,846,568,117.30 and 21,729,437,991.80 is: 32,594,156,987.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,897,712,078.20 : 98,846,568,117.30 = 21,729,437,991.80 : x
  2. Step 2: Convert to fraction form
    65,897,712,078.20/98,846,568,117.30 = 21,729,437,991.80/x
  3. Step 3: Cross multiply
    65,897,712,078.20x = 98,846,568,117.30 × 21,729,437,991.80
  4. Step 4: Simplify right side
    65,897,712,078.20x = 2,147,880,372,607,105,105,920
  5. Step 5: Solve for x
    x = 2,147,880,372,607,105,105,920/65,897,712,078.20
  6. Step 6: Final answer
    x = 32,594,156,987.70

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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.