Home / 19,176,004.80-28,764,007.20-12,009,643.20

Finding the Fourth Proportional to 19,176,004.80, 28,764,007.20 and 12,009,643.20

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Solution

The fourth proportional to 19,176,004.80, 28,764,007.20 and 12,009,643.20 is: 18,014,464.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,176,004.80 : 28,764,007.20 = 12,009,643.20 : x
  2. Step 2: Convert to fraction form
    19,176,004.80/28,764,007.20 = 12,009,643.20/x
  3. Step 3: Cross multiply
    19,176,004.80x = 28,764,007.20 × 12,009,643.20
  4. Step 4: Simplify right side
    19,176,004.80x = 345,445,463,474,231
  5. Step 5: Solve for x
    x = 345,445,463,474,231/19,176,004.80
  6. Step 6: Final answer
    x = 18,014,464.80

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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.