Finding the Fourth Proportional to 81,967,582.54, 113,115,374.16 and 47,159,574.88
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Solution
The fourth proportional to 81,967,582.54, 113,115,374.16 and 47,159,574.88 is: 65,080,276.77
Step by Step Solution
- Step 1: Write the proportion equation
81,967,582.54 : 113,115,374.16 = 47,159,574.88 : x - Step 2: Convert to fraction form
81,967,582.54/113,115,374.16 = 47,159,574.88/x - Step 3: Cross multiply
81,967,582.54x = 113,115,374.16 × 47,159,574.88 - Step 4: Simplify right side
81,967,582.54x = 5,334,472,957,777,737 - Step 5: Solve for x
x = 5,334,472,957,777,737/81,967,582.54 - Step 6: Final answer
x = 65,080,276.77
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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.