Finding the Fourth Proportional to 21,312,335.53, 29,408,826.68 and 15,733,549.12
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Solution
The fourth proportional to 21,312,335.53, 29,408,826.68 and 15,733,549.12 is: 21,710,676.37
Step by Step Solution
- Step 1: Write the proportion equation
21,312,335.53 : 29,408,826.68 = 15,733,549.12 : x - Step 2: Convert to fraction form
21,312,335.53/29,408,826.68 = 15,733,549.12/x - Step 3: Cross multiply
21,312,335.53x = 29,408,826.68 × 15,733,549.12 - Step 4: Simplify right side
21,312,335.53x = 462,705,219,264,497.88 - Step 5: Solve for x
x = 462,705,219,264,497.88/21,312,335.53 - Step 6: Final answer
x = 21,710,676.37
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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.