Home / 18,953,999.70-28,430,999.55-9,370,857.30

Finding the Fourth Proportional to 18,953,999.70, 28,430,999.55 and 9,370,857.30

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Solution

The fourth proportional to 18,953,999.70, 28,430,999.55 and 9,370,857.30 is: 14,056,285.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,953,999.70 : 28,430,999.55 = 9,370,857.30 : x
  2. Step 2: Convert to fraction form
    18,953,999.70/28,430,999.55 = 9,370,857.30/x
  3. Step 3: Cross multiply
    18,953,999.70x = 28,430,999.55 × 9,370,857.30
  4. Step 4: Simplify right side
    18,953,999.70x = 266,422,839,679,414.25
  5. Step 5: Solve for x
    x = 266,422,839,679,414.25/18,953,999.70
  6. Step 6: Final answer
    x = 14,056,285.95

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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.