Finding the Fourth Proportional to 7,191,813.09, 10,787,645.76 and 4,157,248.08
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Solution
The fourth proportional to 7,191,813.09, 10,787,645.76 and 4,157,248.08 is: 6,235,829.42
Step by Step Solution
- Step 1: Write the proportion equation
7,191,813.09 : 10,787,645.76 = 4,157,248.08 : x - Step 2: Convert to fraction form
7,191,813.09/10,787,645.76 = 4,157,248.08/x - Step 3: Cross multiply
7,191,813.09x = 10,787,645.76 × 4,157,248.08 - Step 4: Simplify right side
7,191,813.09x = 44,846,919,623,480.14 - Step 5: Solve for x
x = 44,846,919,623,480.14/7,191,813.09 - Step 6: Final answer
x = 6,235,829.42
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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.