Finding the Fourth Proportional to 3,706,675.44, 5,115,062.65 and 2,157,981.68
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Solution
The fourth proportional to 3,706,675.44, 5,115,062.65 and 2,157,981.68 is: 2,977,927.71
Step by Step Solution
- Step 1: Write the proportion equation
3,706,675.44 : 5,115,062.65 = 2,157,981.68 : x - Step 2: Convert to fraction form
3,706,675.44/5,115,062.65 = 2,157,981.68/x - Step 3: Cross multiply
3,706,675.44x = 5,115,062.65 × 2,157,981.68 - Step 4: Simplify right side
3,706,675.44x = 11,038,211,498,144.96 - Step 5: Solve for x
x = 11,038,211,498,144.96/3,706,675.44 - Step 6: Final answer
x = 2,977,927.71
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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.