Home / 13,438,010.22-18,543,655.02-7,635,986.70

Finding the Fourth Proportional to 13,438,010.22, 18,543,655.02 and 7,635,986.70

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Solution

The fourth proportional to 13,438,010.22, 18,543,655.02 and 7,635,986.70 is: 10,537,207.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,438,010.22 : 18,543,655.02 = 7,635,986.70 : x
  2. Step 2: Convert to fraction form
    13,438,010.22/18,543,655.02 = 7,635,986.70/x
  3. Step 3: Cross multiply
    13,438,010.22x = 18,543,655.02 × 7,635,986.70
  4. Step 4: Simplify right side
    13,438,010.22x = 141,599,103,102,108.22
  5. Step 5: Solve for x
    x = 141,599,103,102,108.22/13,438,010.22
  6. Step 6: Final answer
    x = 10,537,207.58

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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.