Finding the Fourth Proportional to 13,702,856.35, 18,908,416.11 and 7,589,753.95
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Solution
The fourth proportional to 13,702,856.35, 18,908,416.11 and 7,589,753.95 is: 10,473,015.42
Step by Step Solution
- Step 1: Write the proportion equation
13,702,856.35 : 18,908,416.11 = 7,589,753.95 : x - Step 2: Convert to fraction form
13,702,856.35/18,908,416.11 = 7,589,753.95/x - Step 3: Cross multiply
13,702,856.35x = 18,908,416.11 × 7,589,753.95 - Step 4: Simplify right side
13,702,856.35x = 143,510,225,854,409.97 - Step 5: Solve for x
x = 143,510,225,854,409.97/13,702,856.35 - Step 6: Final answer
x = 10,473,015.42
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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.