Home / 7,139,817.40-10,693,979.70-3,770,087.80

Finding the Fourth Proportional to 7,139,817.40, 10,693,979.70 and 3,770,087.80

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Solution

The fourth proportional to 7,139,817.40, 10,693,979.70 and 3,770,087.80 is: 5,646,817.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139,817.40 : 10,693,979.70 = 3,770,087.80 : x
  2. Step 2: Convert to fraction form
    7,139,817.40/10,693,979.70 = 3,770,087.80/x
  3. Step 3: Cross multiply
    7,139,817.40x = 10,693,979.70 × 3,770,087.80
  4. Step 4: Simplify right side
    7,139,817.40x = 40,317,242,400,417.66
  5. Step 5: Solve for x
    x = 40,317,242,400,417.66/7,139,817.40
  6. Step 6: Final answer
    x = 5,646,817.02

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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.