Home / 19,320,175.20-28,980,262.80-11,761,903.20

Finding the Fourth Proportional to 19,320,175.20, 28,980,262.80 and 11,761,903.20

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Solution

The fourth proportional to 19,320,175.20, 28,980,262.80 and 11,761,903.20 is: 17,642,854.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320,175.20 : 28,980,262.80 = 11,761,903.20 : x
  2. Step 2: Convert to fraction form
    19,320,175.20/28,980,262.80 = 11,761,903.20/x
  3. Step 3: Cross multiply
    19,320,175.20x = 28,980,262.80 × 11,761,903.20
  4. Step 4: Simplify right side
    19,320,175.20x = 340,863,045,764,160.94
  5. Step 5: Solve for x
    x = 340,863,045,764,160.94/19,320,175.20
  6. Step 6: Final answer
    x = 17,642,854.80

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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.