Home / 13,485,566.88-18,609,912-7,373,980.80

Finding the Fourth Proportional to 13,485,566.88, 18,609,912 and 7,373,980.80

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Solution

The fourth proportional to 13,485,566.88, 18,609,912 and 7,373,980.80 is: 10,176,000.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,485,566.88 : 18,609,912 = 7,373,980.80 : x
  2. Step 2: Convert to fraction form
    13,485,566.88/18,609,912 = 7,373,980.80/x
  3. Step 3: Cross multiply
    13,485,566.88x = 18,609,912 × 7,373,980.80
  4. Step 4: Simplify right side
    13,485,566.88x = 137,229,133,777,689.59
  5. Step 5: Solve for x
    x = 137,229,133,777,689.59/13,485,566.88
  6. Step 6: Final answer
    x = 10,176,000.39

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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.