Finding the Fourth Proportional to 39,872,454.88, 55,024,011.84 and 21,537,748.48
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Solution
The fourth proportional to 39,872,454.88, 55,024,011.84 and 21,537,748.48 is: 29,722,105.92
Step by Step Solution
- Step 1: Write the proportion equation
39,872,454.88 : 55,024,011.84 = 21,537,748.48 : x - Step 2: Convert to fraction form
39,872,454.88/55,024,011.84 = 21,537,748.48/x - Step 3: Cross multiply
39,872,454.88x = 55,024,011.84 × 21,537,748.48 - Step 4: Simplify right side
39,872,454.88x = 1,185,093,327,370,462 - Step 5: Solve for x
x = 1,185,093,327,370,462/39,872,454.88 - Step 6: Final answer
x = 29,722,105.92
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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.