Home / 146,020,378-219,245,881.56-81,450,340.24

Finding the Fourth Proportional to 146,020,378, 219,245,881.56 and 81,450,340.24

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Solution

The fourth proportional to 146,020,378, 219,245,881.56 and 81,450,340.24 is: 122,295,613.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,020,378 : 219,245,881.56 = 81,450,340.24 : x
  2. Step 2: Convert to fraction form
    146,020,378/219,245,881.56 = 81,450,340.24/x
  3. Step 3: Cross multiply
    146,020,378x = 219,245,881.56 × 81,450,340.24
  4. Step 4: Simplify right side
    146,020,378x = 17,857,651,649,280,740
  5. Step 5: Solve for x
    x = 17,857,651,649,280,740/146,020,378
  6. Step 6: Final answer
    x = 122,295,613.08

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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.