Finding the Fourth Proportional to 5,178,171.24, 7,148,941.36 and 4,603,624.48
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Solution
The fourth proportional to 5,178,171.24, 7,148,941.36 and 4,603,624.48 is: 6,355,726.75
Step by Step Solution
- Step 1: Write the proportion equation
5,178,171.24 : 7,148,941.36 = 4,603,624.48 : x - Step 2: Convert to fraction form
5,178,171.24/7,148,941.36 = 4,603,624.48/x - Step 3: Cross multiply
5,178,171.24x = 7,148,941.36 × 4,603,624.48 - Step 4: Simplify right side
5,178,171.24x = 32,911,041,450,980.50 - Step 5: Solve for x
x = 32,911,041,450,980.50/5,178,171.24 - Step 6: Final answer
x = 6,355,726.75
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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.