Finding the Fourth Proportional to 5,602,686.59, 7,731,503.35 and 3,121,779.05
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Solution
The fourth proportional to 5,602,686.59, 7,731,503.35 and 3,121,779.05 is: 4,307,941.35
Step by Step Solution
- Step 1: Write the proportion equation
5,602,686.59 : 7,731,503.35 = 3,121,779.05 : x - Step 2: Convert to fraction form
5,602,686.59/7,731,503.35 = 3,121,779.05/x - Step 3: Cross multiply
5,602,686.59x = 7,731,503.35 × 3,121,779.05 - Step 4: Simplify right side
5,602,686.59x = 24,136,045,206,265.80 - Step 5: Solve for x
x = 24,136,045,206,265.80/5,602,686.59 - Step 6: Final answer
x = 4,307,941.35
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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.