Home / 28,716,642.60-43,074,963.90-19,161,493.80

Finding the Fourth Proportional to 28,716,642.60, 43,074,963.90 and 19,161,493.80

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Solution

The fourth proportional to 28,716,642.60, 43,074,963.90 and 19,161,493.80 is: 28,742,240.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,716,642.60 : 43,074,963.90 = 19,161,493.80 : x
  2. Step 2: Convert to fraction form
    28,716,642.60/43,074,963.90 = 19,161,493.80/x
  3. Step 3: Cross multiply
    28,716,642.60x = 43,074,963.90 × 19,161,493.80
  4. Step 4: Simplify right side
    28,716,642.60x = 825,380,653,705,073.88
  5. Step 5: Solve for x
    x = 825,380,653,705,073.88/28,716,642.60
  6. Step 6: Final answer
    x = 28,742,240.70

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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.