Finding the Fourth Proportional to 2,989,875.85, 4,124,593.64 and 1,956,928.88
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Solution
The fourth proportional to 2,989,875.85, 4,124,593.64 and 1,956,928.88 is: 2,699,622.61
Step by Step Solution
- Step 1: Write the proportion equation
2,989,875.85 : 4,124,593.64 = 1,956,928.88 : x - Step 2: Convert to fraction form
2,989,875.85/4,124,593.64 = 1,956,928.88/x - Step 3: Cross multiply
2,989,875.85x = 4,124,593.64 × 1,956,928.88 - Step 4: Simplify right side
2,989,875.85x = 8,071,536,427,584.13 - Step 5: Solve for x
x = 8,071,536,427,584.13/2,989,875.85 - Step 6: Final answer
x = 2,699,622.61
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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.