Home / 130,206,842.78-179,834,571.75-85,751,540.69

Finding the Fourth Proportional to 130,206,842.78, 179,834,571.75 and 85,751,540.69

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Solution

The fourth proportional to 130,206,842.78, 179,834,571.75 and 85,751,540.69 is: 118,435,339.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,206,842.78 : 179,834,571.75 = 85,751,540.69 : x
  2. Step 2: Convert to fraction form
    130,206,842.78/179,834,571.75 = 85,751,540.69/x
  3. Step 3: Cross multiply
    130,206,842.78x = 179,834,571.75 × 85,751,540.69
  4. Step 4: Simplify right side
    130,206,842.78x = 15,421,091,595,989,678
  5. Step 5: Solve for x
    x = 15,421,091,595,989,678/130,206,842.78
  6. Step 6: Final answer
    x = 118,435,339.24

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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.