Finding the Fourth Proportional to 197,612,472.15, 272,615,787.75 and 119,270,982.87
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Solution
The fourth proportional to 197,612,472.15, 272,615,787.75 and 119,270,982.87 is: 164,539,983.72
Step by Step Solution
- Step 1: Write the proportion equation
197,612,472.15 : 272,615,787.75 = 119,270,982.87 : x - Step 2: Convert to fraction form
197,612,472.15/272,615,787.75 = 119,270,982.87/x - Step 3: Cross multiply
197,612,472.15x = 272,615,787.75 × 119,270,982.87 - Step 4: Simplify right side
197,612,472.15x = 32,515,152,950,821,808 - Step 5: Solve for x
x = 32,515,152,950,821,808/197,612,472.15 - Step 6: Final answer
x = 164,539,983.72
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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.