Finding the Fourth Proportional to 7,687,743.90, 10,609,307.99 and 4,250,206.36
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Solution
The fourth proportional to 7,687,743.90, 10,609,307.99 and 4,250,206.36 is: 5,865,407.18
Step by Step Solution
- Step 1: Write the proportion equation
7,687,743.90 : 10,609,307.99 = 4,250,206.36 : x - Step 2: Convert to fraction form
7,687,743.90/10,609,307.99 = 4,250,206.36/x - Step 3: Cross multiply
7,687,743.90x = 10,609,307.99 × 4,250,206.36 - Step 4: Simplify right side
7,687,743.90x = 45,091,748,294,296.82 - Step 5: Solve for x
x = 45,091,748,294,296.82/7,687,743.90 - Step 6: Final answer
x = 5,865,407.18
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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.