Home / 12,938,716.56-17,855,143.56-7,137,503.04

Finding the Fourth Proportional to 12,938,716.56, 17,855,143.56 and 7,137,503.04

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Solution

The fourth proportional to 12,938,716.56, 17,855,143.56 and 7,137,503.04 is: 9,849,596.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,938,716.56 : 17,855,143.56 = 7,137,503.04 : x
  2. Step 2: Convert to fraction form
    12,938,716.56/17,855,143.56 = 7,137,503.04/x
  3. Step 3: Cross multiply
    12,938,716.56x = 17,855,143.56 × 7,137,503.04
  4. Step 4: Simplify right side
    12,938,716.56x = 127,441,141,439,136.41
  5. Step 5: Solve for x
    x = 127,441,141,439,136.41/12,938,716.56
  6. Step 6: Final answer
    x = 9,849,596.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.