Home / 13,187,509.02-18,199,326.87-7,679,995.11

Finding the Fourth Proportional to 13,187,509.02, 18,199,326.87 and 7,679,995.11

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Solution

The fourth proportional to 13,187,509.02, 18,199,326.87 and 7,679,995.11 is: 10,598,721.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187,509.02 : 18,199,326.87 = 7,679,995.11 : x
  2. Step 2: Convert to fraction form
    13,187,509.02/18,199,326.87 = 7,679,995.11/x
  3. Step 3: Cross multiply
    13,187,509.02x = 18,199,326.87 × 7,679,995.11
  4. Step 4: Simplify right side
    13,187,509.02x = 139,770,741,366,891.62
  5. Step 5: Solve for x
    x = 139,770,741,366,891.62/13,187,509.02
  6. Step 6: Final answer
    x = 10,598,721.95

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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.