Finding the Fourth Proportional to 15,710,963.09, 21,680,788.64 and 9,095,830.28
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Solution
The fourth proportional to 15,710,963.09, 21,680,788.64 and 9,095,830.28 is: 12,552,048.70
Step by Step Solution
- Step 1: Write the proportion equation
15,710,963.09 : 21,680,788.64 = 9,095,830.28 : x - Step 2: Convert to fraction form
15,710,963.09/21,680,788.64 = 9,095,830.28/x - Step 3: Cross multiply
15,710,963.09x = 21,680,788.64 × 9,095,830.28 - Step 4: Simplify right side
15,710,963.09x = 197,204,773,805,992 - Step 5: Solve for x
x = 197,204,773,805,992/15,710,963.09 - Step 6: Final answer
x = 12,552,048.70
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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.