Finding the Fourth Proportional to 4,013,507.98, 5,538,612.99 and 2,177,919.58
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Solution
The fourth proportional to 4,013,507.98, 5,538,612.99 and 2,177,919.58 is: 3,005,513.81
Step by Step Solution
- Step 1: Write the proportion equation
4,013,507.98 : 5,538,612.99 = 2,177,919.58 : x - Step 2: Convert to fraction form
4,013,507.98/5,538,612.99 = 2,177,919.58/x - Step 3: Cross multiply
4,013,507.98x = 5,538,612.99 × 2,177,919.58 - Step 4: Simplify right side
4,013,507.98x = 12,062,653,676,963.35 - Step 5: Solve for x
x = 12,062,653,676,963.35/4,013,507.98 - Step 6: Final answer
x = 3,005,513.81
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1.5x scale
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.