Home / 622,145,019.39-858,586,209.80-357,827,086.23

Finding the Fourth Proportional to 622,145,019.39, 858,586,209.80 and 357,827,086.23

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Solution

The fourth proportional to 622,145,019.39, 858,586,209.80 and 357,827,086.23 is: 493,816,380.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,145,019.39 : 858,586,209.80 = 357,827,086.23 : x
  2. Step 2: Convert to fraction form
    622,145,019.39/858,586,209.80 = 357,827,086.23/x
  3. Step 3: Cross multiply
    622,145,019.39x = 858,586,209.80 × 357,827,086.23
  4. Step 4: Simplify right side
    622,145,019.39x = 307,225,401,728,204,352
  5. Step 5: Solve for x
    x = 307,225,401,728,204,352/622,145,019.39
  6. Step 6: Final answer
    x = 493,816,380.67

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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.