Home / 421,385,399.81-581,507,568.36-233,214,059.03

Finding the Fourth Proportional to 421,385,399.81, 581,507,568.36 and 233,214,059.03

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Solution

The fourth proportional to 421,385,399.81, 581,507,568.36 and 233,214,059.03 is: 321,833,030.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,385,399.81 : 581,507,568.36 = 233,214,059.03 : x
  2. Step 2: Convert to fraction form
    421,385,399.81/581,507,568.36 = 233,214,059.03/x
  3. Step 3: Cross multiply
    421,385,399.81x = 581,507,568.36 × 233,214,059.03
  4. Step 4: Simplify right side
    421,385,399.81x = 135,615,740,375,354,576
  5. Step 5: Solve for x
    x = 135,615,740,375,354,576/421,385,399.81
  6. Step 6: Final answer
    x = 321,833,030.85

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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.