Home / 19,956,619.80-29,934,929.70-18,043,432.20

Finding the Fourth Proportional to 19,956,619.80, 29,934,929.70 and 18,043,432.20

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Solution

The fourth proportional to 19,956,619.80, 29,934,929.70 and 18,043,432.20 is: 27,065,148.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,956,619.80 : 29,934,929.70 = 18,043,432.20 : x
  2. Step 2: Convert to fraction form
    19,956,619.80/29,934,929.70 = 18,043,432.20/x
  3. Step 3: Cross multiply
    19,956,619.80x = 29,934,929.70 × 18,043,432.20
  4. Step 4: Simplify right side
    19,956,619.80x = 540,128,874,453,716.31
  5. Step 5: Solve for x
    x = 540,128,874,453,716.31/19,956,619.80
  6. Step 6: Final answer
    x = 27,065,148.30

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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.