Home / 19,161,921.60-28,742,882.40-18,028,180.80

Finding the Fourth Proportional to 19,161,921.60, 28,742,882.40 and 18,028,180.80

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Solution

The fourth proportional to 19,161,921.60, 28,742,882.40 and 18,028,180.80 is: 27,042,271.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,161,921.60 : 28,742,882.40 = 18,028,180.80 : x
  2. Step 2: Convert to fraction form
    19,161,921.60/28,742,882.40 = 18,028,180.80/x
  3. Step 3: Cross multiply
    19,161,921.60x = 28,742,882.40 × 18,028,180.80
  4. Step 4: Simplify right side
    19,161,921.60x = 518,181,880,620,337.94
  5. Step 5: Solve for x
    x = 518,181,880,620,337.94/19,161,921.60
  6. Step 6: Final answer
    x = 27,042,271.20

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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.