Home / 216,364,906.05-324,549,852.24-78,201,006.09

Finding the Fourth Proportional to 216,364,906.05, 324,549,852.24 and 78,201,006.09

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Solution

The fourth proportional to 216,364,906.05, 324,549,852.24 and 78,201,006.09 is: 117,302,410.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,364,906.05 : 324,549,852.24 = 78,201,006.09 : x
  2. Step 2: Convert to fraction form
    216,364,906.05/324,549,852.24 = 78,201,006.09/x
  3. Step 3: Cross multiply
    216,364,906.05x = 324,549,852.24 × 78,201,006.09
  4. Step 4: Simplify right side
    216,364,906.05x = 25,380,124,971,528,844
  5. Step 5: Solve for x
    x = 25,380,124,971,528,844/216,364,906.05
  6. Step 6: Final answer
    x = 117,302,410.24

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.