Finding the Fourth Proportional to 38,762,749.58, 53,490,184.18 and 21,358,120.82
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Solution
The fourth proportional to 38,762,749.58, 53,490,184.18 and 21,358,120.82 is: 29,472,878.69
Step by Step Solution
- Step 1: Write the proportion equation
38,762,749.58 : 53,490,184.18 = 21,358,120.82 : x - Step 2: Convert to fraction form
38,762,749.58/53,490,184.18 = 21,358,120.82/x - Step 3: Cross multiply
38,762,749.58x = 53,490,184.18 × 21,358,120.82 - Step 4: Simplify right side
38,762,749.58x = 1,142,449,816,079,646.50 - Step 5: Solve for x
x = 1,142,449,816,079,646.50/38,762,749.58 - Step 6: Final answer
x = 29,472,878.69
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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.