Finding the Fourth Proportional to 12,154,979.16, 16,779,036.06 and 7,573,564.08
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Solution
The fourth proportional to 12,154,979.16, 16,779,036.06 and 7,573,564.08 is: 10,454,736.54
Step by Step Solution
- Step 1: Write the proportion equation
12,154,979.16 : 16,779,036.06 = 7,573,564.08 : x - Step 2: Convert to fraction form
12,154,979.16/16,779,036.06 = 7,573,564.08/x - Step 3: Cross multiply
12,154,979.16x = 16,779,036.06 × 7,573,564.08 - Step 4: Simplify right side
12,154,979.16x = 127,077,104,801,040.72 - Step 5: Solve for x
x = 127,077,104,801,040.72/12,154,979.16 - Step 6: Final answer
x = 10,454,736.54
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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.