Home / 28,742,721.60-43,043,223.60-19,105,924.80

Finding the Fourth Proportional to 28,742,721.60, 43,043,223.60 and 19,105,924.80

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Solution

The fourth proportional to 28,742,721.60, 43,043,223.60 and 19,105,924.80 is: 28,611,785.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,742,721.60 : 43,043,223.60 = 19,105,924.80 : x
  2. Step 2: Convert to fraction form
    28,742,721.60/43,043,223.60 = 19,105,924.80/x
  3. Step 3: Cross multiply
    28,742,721.60x = 43,043,223.60 × 19,105,924.80
  4. Step 4: Simplify right side
    28,742,721.60x = 822,380,593,251,185.38
  5. Step 5: Solve for x
    x = 822,380,593,251,185.38/28,742,721.60
  6. Step 6: Final answer
    x = 28,611,785.78

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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.