Home / 19,320,172.20-28,980,258.30-11,761,900.20

Finding the Fourth Proportional to 19,320,172.20, 28,980,258.30 and 11,761,900.20

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Solution

The fourth proportional to 19,320,172.20, 28,980,258.30 and 11,761,900.20 is: 17,642,850.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320,172.20 : 28,980,258.30 = 11,761,900.20 : x
  2. Step 2: Convert to fraction form
    19,320,172.20/28,980,258.30 = 11,761,900.20/x
  3. Step 3: Cross multiply
    19,320,172.20x = 28,980,258.30 × 11,761,900.20
  4. Step 4: Simplify right side
    19,320,172.20x = 340,862,905,894,821.62
  5. Step 5: Solve for x
    x = 340,862,905,894,821.62/19,320,172.20
  6. Step 6: Final answer
    x = 17,642,850.30

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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.