Home / 685,660,184.60-946,179,386.00-388,304,554.64

Finding the Fourth Proportional to 685,660,184.60, 946,179,386.00 and 388,304,554.64

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Solution

The fourth proportional to 685,660,184.60, 946,179,386.00 and 388,304,554.64 is: 535,842,350.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,660,184.60 : 946,179,386.00 = 388,304,554.64 : x
  2. Step 2: Convert to fraction form
    685,660,184.60/946,179,386.00 = 388,304,554.64/x
  3. Step 3: Cross multiply
    685,660,184.60x = 946,179,386.00 × 388,304,554.64
  4. Step 4: Simplify right side
    685,660,184.60x = 367,405,765,083,606,208
  5. Step 5: Solve for x
    x = 367,405,765,083,606,208/685,660,184.60
  6. Step 6: Final answer
    x = 535,842,350.68

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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.