Finding the Fourth Proportional to 15,896,490.28, 21,935,905.86 and 9,020,972.26
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Solution
The fourth proportional to 15,896,490.28, 21,935,905.86 and 9,020,972.26 is: 12,448,231.95
Step by Step Solution
- Step 1: Write the proportion equation
15,896,490.28 : 21,935,905.86 = 9,020,972.26 : x - Step 2: Convert to fraction form
15,896,490.28/21,935,905.86 = 9,020,972.26/x - Step 3: Cross multiply
15,896,490.28x = 21,935,905.86 × 9,020,972.26 - Step 4: Simplify right side
15,896,490.28x = 197,883,198,261,031.44 - Step 5: Solve for x
x = 197,883,198,261,031.44/15,896,490.28 - Step 6: Final answer
x = 12,448,231.95
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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.