Finding the Fourth Proportional to 38,932,485.42, 53,727,178.08 and 21,530,001.54
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Solution
The fourth proportional to 38,932,485.42, 53,727,178.08 and 21,530,001.54 is: 29,711,594.68
Step by Step Solution
- Step 1: Write the proportion equation
38,932,485.42 : 53,727,178.08 = 21,530,001.54 : x - Step 2: Convert to fraction form
38,932,485.42/53,727,178.08 = 21,530,001.54/x - Step 3: Cross multiply
38,932,485.42x = 53,727,178.08 × 21,530,001.54 - Step 4: Simplify right side
38,932,485.42x = 1,156,746,226,802,254.25 - Step 5: Solve for x
x = 1,156,746,226,802,254.25/38,932,485.42 - Step 6: Final answer
x = 29,711,594.68
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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.