Finding the Fourth Proportional to 20,565,544.10, 30,848,316.15 and 7,786,465.70
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Solution
The fourth proportional to 20,565,544.10, 30,848,316.15 and 7,786,465.70 is: 11,679,698.55
Step by Step Solution
- Step 1: Write the proportion equation
20,565,544.10 : 30,848,316.15 = 7,786,465.70 : x - Step 2: Convert to fraction form
20,565,544.10/30,848,316.15 = 7,786,465.70/x - Step 3: Cross multiply
20,565,544.10x = 30,848,316.15 × 7,786,465.70 - Step 4: Simplify right side
20,565,544.10x = 240,199,355,604,731.06 - Step 5: Solve for x
x = 240,199,355,604,731.06/20,565,544.10 - Step 6: Final answer
x = 11,679,698.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.