Home / 30,731,890.40-46,100,168.40-9,164,808.80

Finding the Fourth Proportional to 30,731,890.40, 46,100,168.40 and 9,164,808.80

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Solution

The fourth proportional to 30,731,890.40, 46,100,168.40 and 9,164,808.80 is: 13,747,908.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,731,890.40 : 46,100,168.40 = 9,164,808.80 : x
  2. Step 2: Convert to fraction form
    30,731,890.40/46,100,168.40 = 9,164,808.80/x
  3. Step 3: Cross multiply
    30,731,890.40x = 46,100,168.40 × 9,164,808.80
  4. Step 4: Simplify right side
    30,731,890.40x = 422,499,229,033,801.94
  5. Step 5: Solve for x
    x = 422,499,229,033,801.94/30,731,890.40
  6. Step 6: Final answer
    x = 13,747,908.88

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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.