Home / 12,769,715.58-19,137,939.21-5,187,817.50

Finding the Fourth Proportional to 12,769,715.58, 19,137,939.21 and 5,187,817.50

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Solution

The fourth proportional to 12,769,715.58, 19,137,939.21 and 5,187,817.50 is: 7,774,968.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,769,715.58 : 19,137,939.21 = 5,187,817.50 : x
  2. Step 2: Convert to fraction form
    12,769,715.58/19,137,939.21 = 5,187,817.50/x
  3. Step 3: Cross multiply
    12,769,715.58x = 19,137,939.21 × 5,187,817.50
  4. Step 4: Simplify right side
    12,769,715.58x = 99,284,135,947,574.17
  5. Step 5: Solve for x
    x = 99,284,135,947,574.17/12,769,715.58
  6. Step 6: Final answer
    x = 7,774,968.47

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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.