Home / 476,862,040.20-658,075,546.89-288,687,836.28

Finding the Fourth Proportional to 476,862,040.20, 658,075,546.89 and 288,687,836.28

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Solution

The fourth proportional to 476,862,040.20, 658,075,546.89 and 288,687,836.28 is: 398,392,804.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,862,040.20 : 658,075,546.89 = 288,687,836.28 : x
  2. Step 2: Convert to fraction form
    476,862,040.20/658,075,546.89 = 288,687,836.28/x
  3. Step 3: Cross multiply
    476,862,040.20x = 658,075,546.89 × 288,687,836.28
  4. Step 4: Simplify right side
    476,862,040.20x = 189,978,405,740,451,776
  5. Step 5: Solve for x
    x = 189,978,405,740,451,776/476,862,040.20
  6. Step 6: Final answer
    x = 398,392,804.89

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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.