Home / 310,295,814.40-465,443,721.60-137,589,299.20

Finding the Fourth Proportional to 310,295,814.40, 465,443,721.60 and 137,589,299.20

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Solution

The fourth proportional to 310,295,814.40, 465,443,721.60 and 137,589,299.20 is: 206,383,948.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,295,814.40 : 465,443,721.60 = 137,589,299.20 : x
  2. Step 2: Convert to fraction form
    310,295,814.40/465,443,721.60 = 137,589,299.20/x
  3. Step 3: Cross multiply
    310,295,814.40x = 465,443,721.60 × 137,589,299.20
  4. Step 4: Simplify right side
    310,295,814.40x = 64,040,075,471,983,904
  5. Step 5: Solve for x
    x = 64,040,075,471,983,904/310,295,814.40
  6. Step 6: Final answer
    x = 206,383,948.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.