Home / 19,928,467.20-29,892,700.80-18,164,870.40

Finding the Fourth Proportional to 19,928,467.20, 29,892,700.80 and 18,164,870.40

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Solution

The fourth proportional to 19,928,467.20, 29,892,700.80 and 18,164,870.40 is: 27,247,305.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928,467.20 : 29,892,700.80 = 18,164,870.40 : x
  2. Step 2: Convert to fraction form
    19,928,467.20/29,892,700.80 = 18,164,870.40/x
  3. Step 3: Cross multiply
    19,928,467.20x = 29,892,700.80 × 18,164,870.40
  4. Step 4: Simplify right side
    19,928,467.20x = 542,997,035,937,976.31
  5. Step 5: Solve for x
    x = 542,997,035,937,976.31/19,928,467.20
  6. Step 6: Final answer
    x = 27,247,305.60

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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.