Home / 69,879,327.91-104,815,178.07-21,357,165.31

Finding the Fourth Proportional to 69,879,327.91, 104,815,178.07 and 21,357,165.31

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Solution

The fourth proportional to 69,879,327.91, 104,815,178.07 and 21,357,165.31 is: 32,034,582.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,879,327.91 : 104,815,178.07 = 21,357,165.31 : x
  2. Step 2: Convert to fraction form
    69,879,327.91/104,815,178.07 = 21,357,165.31/x
  3. Step 3: Cross multiply
    69,879,327.91x = 104,815,178.07 × 21,357,165.31
  4. Step 4: Simplify right side
    69,879,327.91x = 2,238,555,085,038,076.50
  5. Step 5: Solve for x
    x = 2,238,555,085,038,076.50/69,879,327.91
  6. Step 6: Final answer
    x = 32,034,582.36

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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.