Finding the Fourth Proportional to 13,667,380.64, 18,860,038.08 and 7,555,328
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Solution
The fourth proportional to 13,667,380.64, 18,860,038.08 and 7,555,328 is: 10,425,829.03
Step by Step Solution
- Step 1: Write the proportion equation
13,667,380.64 : 18,860,038.08 = 7,555,328 : x - Step 2: Convert to fraction form
13,667,380.64/18,860,038.08 = 7,555,328/x - Step 3: Cross multiply
13,667,380.64x = 18,860,038.08 × 7,555,328 - Step 4: Simplify right side
13,667,380.64x = 142,493,773,786,890.22 - Step 5: Solve for x
x = 142,493,773,786,890.22/13,667,380.64 - Step 6: Final answer
x = 10,425,829.03
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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.