Finding the Fourth Proportional to 21,555,254.08, 29,741,810.15 and 12,386,125.36
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Solution
The fourth proportional to 21,555,254.08, 29,741,810.15 and 12,386,125.36 is: 17,090,301.40
Step by Step Solution
- Step 1: Write the proportion equation
21,555,254.08 : 29,741,810.15 = 12,386,125.36 : x - Step 2: Convert to fraction form
21,555,254.08/29,741,810.15 = 12,386,125.36/x - Step 3: Cross multiply
21,555,254.08x = 29,741,810.15 × 12,386,125.36 - Step 4: Simplify right side
21,555,254.08x = 368,385,788,932,263.75 - Step 5: Solve for x
x = 368,385,788,932,263.75/21,555,254.08 - Step 6: Final answer
x = 17,090,301.40
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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.