Finding the Fourth Proportional to 8,390,748.64, 11,579,149.20 and 4,669,516.84
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Solution
The fourth proportional to 8,390,748.64, 11,579,149.20 and 4,669,516.84 is: 6,443,886.54
Step by Step Solution
- Step 1: Write the proportion equation
8,390,748.64 : 11,579,149.20 = 4,669,516.84 : x - Step 2: Convert to fraction form
8,390,748.64/11,579,149.20 = 4,669,516.84/x - Step 3: Cross multiply
8,390,748.64x = 11,579,149.20 × 4,669,516.84 - Step 4: Simplify right side
8,390,748.64x = 54,069,032,182,272.52 - Step 5: Solve for x
x = 54,069,032,182,272.52/8,390,748.64 - Step 6: Final answer
x = 6,443,886.54
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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.