Home / 193,632,051.20-290,448,076.80-72,447,756.80

Finding the Fourth Proportional to 193,632,051.20, 290,448,076.80 and 72,447,756.80

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Solution

The fourth proportional to 193,632,051.20, 290,448,076.80 and 72,447,756.80 is: 108,671,635.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,632,051.20 : 290,448,076.80 = 72,447,756.80 : x
  2. Step 2: Convert to fraction form
    193,632,051.20/290,448,076.80 = 72,447,756.80/x
  3. Step 3: Cross multiply
    193,632,051.20x = 290,448,076.80 × 72,447,756.80
  4. Step 4: Simplify right side
    193,632,051.20x = 21,042,311,631,034,124
  5. Step 5: Solve for x
    x = 21,042,311,631,034,124/193,632,051.20
  6. Step 6: Final answer
    x = 108,671,635.20

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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.