Home / 147,299,313.78-221,012,685.27-79,062,289.38

Finding the Fourth Proportional to 147,299,313.78, 221,012,685.27 and 79,062,289.38

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Solution

The fourth proportional to 147,299,313.78, 221,012,685.27 and 79,062,289.38 is: 118,627,632.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,299,313.78 : 221,012,685.27 = 79,062,289.38 : x
  2. Step 2: Convert to fraction form
    147,299,313.78/221,012,685.27 = 79,062,289.38/x
  3. Step 3: Cross multiply
    147,299,313.78x = 221,012,685.27 × 79,062,289.38
  4. Step 4: Simplify right side
    147,299,313.78x = 17,473,768,879,467,604
  5. Step 5: Solve for x
    x = 17,473,768,879,467,604/147,299,313.78
  6. Step 6: Final answer
    x = 118,627,632.61

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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.