Home / 28,161,038.56-38,879,785.20-19,355,651.68

Finding the Fourth Proportional to 28,161,038.56, 38,879,785.20 and 19,355,651.68

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Solution

The fourth proportional to 28,161,038.56, 38,879,785.20 and 19,355,651.68 is: 26,722,863.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,161,038.56 : 38,879,785.20 = 19,355,651.68 : x
  2. Step 2: Convert to fraction form
    28,161,038.56/38,879,785.20 = 19,355,651.68/x
  3. Step 3: Cross multiply
    28,161,038.56x = 38,879,785.20 × 19,355,651.68
  4. Step 4: Simplify right side
    28,161,038.56x = 752,543,579,724,419.12
  5. Step 5: Solve for x
    x = 752,543,579,724,419.12/28,161,038.56
  6. Step 6: Final answer
    x = 26,722,863.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.