Finding the Fourth Proportional to 15,645,336.06, 21,590,529.06 and 8,675,841.36
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Solution
The fourth proportional to 15,645,336.06, 21,590,529.06 and 8,675,841.36 is: 11,972,641.83
Step by Step Solution
- Step 1: Write the proportion equation
15,645,336.06 : 21,590,529.06 = 8,675,841.36 : x - Step 2: Convert to fraction form
15,645,336.06/21,590,529.06 = 8,675,841.36/x - Step 3: Cross multiply
15,645,336.06x = 21,590,529.06 × 8,675,841.36 - Step 4: Simplify right side
15,645,336.06x = 187,316,005,003,029.91 - Step 5: Solve for x
x = 187,316,005,003,029.91/15,645,336.06 - Step 6: Final answer
x = 11,972,641.83
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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.