Home / 10,391,879.40-15,545,828.70-8,987,533.80

Finding the Fourth Proportional to 10,391,879.40, 15,545,828.70 and 8,987,533.80

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Solution

The fourth proportional to 10,391,879.40, 15,545,828.70 and 8,987,533.80 is: 13,444,984.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,391,879.40 : 15,545,828.70 = 8,987,533.80 : x
  2. Step 2: Convert to fraction form
    10,391,879.40/15,545,828.70 = 8,987,533.80/x
  3. Step 3: Cross multiply
    10,391,879.40x = 15,545,828.70 × 8,987,533.80
  4. Step 4: Simplify right side
    10,391,879.40x = 139,718,660,890,260.06
  5. Step 5: Solve for x
    x = 139,718,660,890,260.06/10,391,879.40
  6. Step 6: Final answer
    x = 13,444,984.83

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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.