Home / 21,550,175.20-32,325,262.80-19,786,578.40

Finding the Fourth Proportional to 21,550,175.20, 32,325,262.80 and 19,786,578.40

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Solution

The fourth proportional to 21,550,175.20, 32,325,262.80 and 19,786,578.40 is: 29,679,867.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,550,175.20 : 32,325,262.80 = 19,786,578.40 : x
  2. Step 2: Convert to fraction form
    21,550,175.20/32,325,262.80 = 19,786,578.40/x
  3. Step 3: Cross multiply
    21,550,175.20x = 32,325,262.80 × 19,786,578.40
  4. Step 4: Simplify right side
    21,550,175.20x = 639,606,346,692,803.50
  5. Step 5: Solve for x
    x = 639,606,346,692,803.50/21,550,175.20
  6. Step 6: Final answer
    x = 29,679,867.60

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1.5x scale

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.