Home / 18,714,920.40-28,025,141.40-12,290,389.20

Finding the Fourth Proportional to 18,714,920.40, 28,025,141.40 and 12,290,389.20

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Solution

The fourth proportional to 18,714,920.40, 28,025,141.40 and 12,290,389.20 is: 18,404,561.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,714,920.40 : 28,025,141.40 = 12,290,389.20 : x
  2. Step 2: Convert to fraction form
    18,714,920.40/28,025,141.40 = 12,290,389.20/x
  3. Step 3: Cross multiply
    18,714,920.40x = 28,025,141.40 × 12,290,389.20
  4. Step 4: Simplify right side
    18,714,920.40x = 344,439,895,191,032.81
  5. Step 5: Solve for x
    x = 344,439,895,191,032.81/18,714,920.40
  6. Step 6: Final answer
    x = 18,404,561.06

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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.