Finding the Fourth Proportional to 5,630,178.79, 7,769,981.81 and 3,183,017.62
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Solution
The fourth proportional to 5,630,178.79, 7,769,981.81 and 3,183,017.62 is: 4,392,753.75
Step by Step Solution
- Step 1: Write the proportion equation
5,630,178.79 : 7,769,981.81 = 3,183,017.62 : x - Step 2: Convert to fraction form
5,630,178.79/7,769,981.81 = 3,183,017.62/x - Step 3: Cross multiply
5,630,178.79x = 7,769,981.81 × 3,183,017.62 - Step 4: Simplify right side
5,630,178.79x = 24,731,989,008,309.49 - Step 5: Solve for x
x = 24,731,989,008,309.49/5,630,178.79 - Step 6: Final answer
x = 4,392,753.75
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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.