Home / 309,619,588.28-427,275,102.25-170,390,350.04

Finding the Fourth Proportional to 309,619,588.28, 427,275,102.25 and 170,390,350.04

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Solution

The fourth proportional to 309,619,588.28, 427,275,102.25 and 170,390,350.04 is: 235,138,721.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,619,588.28 : 427,275,102.25 = 170,390,350.04 : x
  2. Step 2: Convert to fraction form
    309,619,588.28/427,275,102.25 = 170,390,350.04/x
  3. Step 3: Cross multiply
    309,619,588.28x = 427,275,102.25 × 170,390,350.04
  4. Step 4: Simplify right side
    309,619,588.28x = 72,803,554,235,274,608
  5. Step 5: Solve for x
    x = 72,803,554,235,274,608/309,619,588.28
  6. Step 6: Final answer
    x = 235,138,721.81

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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.