Home / 12,997,955.79-17,937,738.77-7,196,736.60

Finding the Fourth Proportional to 12,997,955.79, 17,937,738.77 and 7,196,736.60

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Solution

The fourth proportional to 12,997,955.79, 17,937,738.77 and 7,196,736.60 is: 9,931,806.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,997,955.79 : 17,937,738.77 = 7,196,736.60 : x
  2. Step 2: Convert to fraction form
    12,997,955.79/17,937,738.77 = 7,196,736.60/x
  3. Step 3: Cross multiply
    12,997,955.79x = 17,937,738.77 × 7,196,736.60
  4. Step 4: Simplify right side
    12,997,955.79x = 129,093,181,091,314.30
  5. Step 5: Solve for x
    x = 129,093,181,091,314.30/12,997,955.79
  6. Step 6: Final answer
    x = 9,931,806.45

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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.