Home / 13,070,790-18,037,589.76-7,190,297.64

Finding the Fourth Proportional to 13,070,790, 18,037,589.76 and 7,190,297.64

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Solution

The fourth proportional to 13,070,790, 18,037,589.76 and 7,190,297.64 is: 9,922,555.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,070,790 : 18,037,589.76 = 7,190,297.64 : x
  2. Step 2: Convert to fraction form
    13,070,790/18,037,589.76 = 7,190,297.64/x
  3. Step 3: Cross multiply
    13,070,790x = 18,037,589.76 × 7,190,297.64
  4. Step 4: Simplify right side
    13,070,790x = 129,695,639,082,616.17
  5. Step 5: Solve for x
    x = 129,695,639,082,616.17/13,070,790
  6. Step 6: Final answer
    x = 9,922,555.49

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1.5x scale

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.