Finding the Fourth Proportional to 7,191,810.99, 10,787,642.55 and 4,157,245.95
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Solution
The fourth proportional to 7,191,810.99, 10,787,642.55 and 4,157,245.95 is: 6,235,826.19
Step by Step Solution
- Step 1: Write the proportion equation
7,191,810.99 : 10,787,642.55 = 4,157,245.95 : x - Step 2: Convert to fraction form
7,191,810.99/10,787,642.55 = 4,157,245.95/x - Step 3: Cross multiply
7,191,810.99x = 10,787,642.55 × 4,157,245.95 - Step 4: Simplify right side
7,191,810.99x = 44,846,883,280,248.95 - Step 5: Solve for x
x = 44,846,883,280,248.95/7,191,810.99 - Step 6: Final answer
x = 6,235,826.19
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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.