Finding the Fourth Proportional to 5,791,742.60, 7,992,582.66 and 3,178,289.95
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Solution
The fourth proportional to 5,791,742.60, 7,992,582.66 and 3,178,289.95 is: 4,386,027.99
Step by Step Solution
- Step 1: Write the proportion equation
5,791,742.60 : 7,992,582.66 = 3,178,289.95 : x - Step 2: Convert to fraction form
5,791,742.60/7,992,582.66 = 3,178,289.95/x - Step 3: Cross multiply
5,791,742.60x = 7,992,582.66 × 3,178,289.95 - Step 4: Simplify right side
5,791,742.60x = 25,402,745,122,840.81 - Step 5: Solve for x
x = 25,402,745,122,840.81/5,791,742.60 - Step 6: Final answer
x = 4,386,027.99
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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.