Home / 421,324,619.45-581,428,931.43-233,166,604.79

Finding the Fourth Proportional to 421,324,619.45, 581,428,931.43 and 233,166,604.79

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Solution

The fourth proportional to 421,324,619.45, 581,428,931.43 and 233,166,604.79 is: 321,770,444.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,324,619.45 : 581,428,931.43 = 233,166,604.79 : x
  2. Step 2: Convert to fraction form
    421,324,619.45/581,428,931.43 = 233,166,604.79/x
  3. Step 3: Cross multiply
    421,324,619.45x = 581,428,931.43 × 233,166,604.79
  4. Step 4: Simplify right side
    421,324,619.45x = 135,569,809,865,303,664
  5. Step 5: Solve for x
    x = 135,569,809,865,303,664/421,324,619.45
  6. Step 6: Final answer
    x = 321,770,444.00

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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.