Finding the Fourth Proportional to 7,789,778.36, 10,750,113.42 and 4,352,397.56
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Solution
The fourth proportional to 7,789,778.36, 10,750,113.42 and 4,352,397.56 is: 6,006,431.15
Step by Step Solution
- Step 1: Write the proportion equation
7,789,778.36 : 10,750,113.42 = 4,352,397.56 : x - Step 2: Convert to fraction form
7,789,778.36/10,750,113.42 = 4,352,397.56/x - Step 3: Cross multiply
7,789,778.36x = 10,750,113.42 × 4,352,397.56 - Step 4: Simplify right side
7,789,778.36x = 46,788,767,418,931.25 - Step 5: Solve for x
x = 46,788,767,418,931.25/7,789,778.36 - Step 6: Final answer
x = 6,006,431.15
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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.