Finding the Fourth Proportional to 38,449,424.19, 53,060,536.28 and 21,930,385.49
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Solution
The fourth proportional to 38,449,424.19, 53,060,536.28 and 21,930,385.49 is: 30,264,120.71
Step by Step Solution
- Step 1: Write the proportion equation
38,449,424.19 : 53,060,536.28 = 21,930,385.49 : x - Step 2: Convert to fraction form
38,449,424.19/53,060,536.28 = 21,930,385.49/x - Step 3: Cross multiply
38,449,424.19x = 53,060,536.28 × 21,930,385.49 - Step 4: Simplify right side
38,449,424.19x = 1,163,638,014,816,878.50 - Step 5: Solve for x
x = 1,163,638,014,816,878.50/38,449,424.19 - Step 6: Final answer
x = 30,264,120.71
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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.