Finding the Fourth Proportional to 11,864,990.48, 16,344,402.08 and 10,116,970.80
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Solution
The fourth proportional to 11,864,990.48, 16,344,402.08 and 10,116,970.80 is: 13,936,449.33
Step by Step Solution
- Step 1: Write the proportion equation
11,864,990.48 : 16,344,402.08 = 10,116,970.80 : x - Step 2: Convert to fraction form
11,864,990.48/16,344,402.08 = 10,116,970.80/x - Step 3: Cross multiply
11,864,990.48x = 16,344,402.08 × 10,116,970.80 - Step 4: Simplify right side
11,864,990.48x = 165,355,838,586,819.28 - Step 5: Solve for x
x = 165,355,838,586,819.28/11,864,990.48 - Step 6: Final answer
x = 13,936,449.33
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1.5x scale
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.