Home / 15,782,757.36-21,779,763.96-8,907,879.12

Finding the Fourth Proportional to 15,782,757.36, 21,779,763.96 and 8,907,879.12

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Solution

The fourth proportional to 15,782,757.36, 21,779,763.96 and 8,907,879.12 is: 12,292,624.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,782,757.36 : 21,779,763.96 = 8,907,879.12 : x
  2. Step 2: Convert to fraction form
    15,782,757.36/21,779,763.96 = 8,907,879.12/x
  3. Step 3: Cross multiply
    15,782,757.36x = 21,779,763.96 × 8,907,879.12
  4. Step 4: Simplify right side
    15,782,757.36x = 194,011,504,617,812.50
  5. Step 5: Solve for x
    x = 194,011,504,617,812.50/15,782,757.36
  6. Step 6: Final answer
    x = 12,292,624.17

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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.