Finding the Fourth Proportional to 178,734,138.70, 268,101,218.85 and 57,565,590.70
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Solution
The fourth proportional to 178,734,138.70, 268,101,218.85 and 57,565,590.70 is: 86,348,389.53
Step by Step Solution
- Step 1: Write the proportion equation
178,734,138.70 : 268,101,218.85 = 57,565,590.70 : x - Step 2: Convert to fraction form
178,734,138.70/268,101,218.85 = 57,565,590.70/x - Step 3: Cross multiply
178,734,138.70x = 268,101,218.85 × 57,565,590.70 - Step 4: Simplify right side
178,734,138.70x = 15,433,405,030,490,226 - Step 5: Solve for x
x = 15,433,405,030,490,226/178,734,138.70 - Step 6: Final answer
x = 86,348,389.53
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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.