Finding the Fourth Proportional to 12,277,779.04, 18,418,349.28 and 4,188,582.80
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Solution
The fourth proportional to 12,277,779.04, 18,418,349.28 and 4,188,582.80 is: 6,283,447.58
Step by Step Solution
- Step 1: Write the proportion equation
12,277,779.04 : 18,418,349.28 = 4,188,582.80 : x - Step 2: Convert to fraction form
12,277,779.04/18,418,349.28 = 4,188,582.80/x - Step 3: Cross multiply
12,277,779.04x = 18,418,349.28 × 4,188,582.80 - Step 4: Simplify right side
12,277,779.04x = 77,146,780,998,600.39 - Step 5: Solve for x
x = 77,146,780,998,600.39/12,277,779.04 - Step 6: Final answer
x = 6,283,447.58
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.