Home / 3,147,999.80-4,721,999.70-1,953,606.20

Finding the Fourth Proportional to 3,147,999.80, 4,721,999.70 and 1,953,606.20

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Solution

The fourth proportional to 3,147,999.80, 4,721,999.70 and 1,953,606.20 is: 2,930,409.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147,999.80 : 4,721,999.70 = 1,953,606.20 : x
  2. Step 2: Convert to fraction form
    3,147,999.80/4,721,999.70 = 1,953,606.20/x
  3. Step 3: Cross multiply
    3,147,999.80x = 4,721,999.70 × 1,953,606.20
  4. Step 4: Simplify right side
    3,147,999.80x = 9,224,927,890,318.14
  5. Step 5: Solve for x
    x = 9,224,927,890,318.14/3,147,999.80
  6. Step 6: Final answer
    x = 2,930,409.30

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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.