Home / 12,889,557.20-17,782,554.58-7,379,987.52

Finding the Fourth Proportional to 12,889,557.20, 17,782,554.58 and 7,379,987.52

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Solution

The fourth proportional to 12,889,557.20, 17,782,554.58 and 7,379,987.52 is: 10,181,500.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,889,557.20 : 17,782,554.58 = 7,379,987.52 : x
  2. Step 2: Convert to fraction form
    12,889,557.20/17,782,554.58 = 7,379,987.52/x
  3. Step 3: Cross multiply
    12,889,557.20x = 17,782,554.58 × 7,379,987.52
  4. Step 4: Simplify right side
    12,889,557.20x = 131,235,030,874,118.83
  5. Step 5: Solve for x
    x = 131,235,030,874,118.83/12,889,557.20
  6. Step 6: Final answer
    x = 10,181,500.33

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1.5x scale

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.