Home / 12,999,247.11-17,938,741.77-7,197,904.29

Finding the Fourth Proportional to 12,999,247.11, 17,938,741.77 and 7,197,904.29

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Solution

The fourth proportional to 12,999,247.11, 17,938,741.77 and 7,197,904.29 is: 9,932,986.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,999,247.11 : 17,938,741.77 = 7,197,904.29 : x
  2. Step 2: Convert to fraction form
    12,999,247.11/17,938,741.77 = 7,197,904.29/x
  3. Step 3: Cross multiply
    12,999,247.11x = 17,938,741.77 × 7,197,904.29
  4. Step 4: Simplify right side
    12,999,247.11x = 129,121,346,343,485.19
  5. Step 5: Solve for x
    x = 129,121,346,343,485.19/12,999,247.11
  6. Step 6: Final answer
    x = 9,932,986.52

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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.