Finding the Fourth Proportional to 9,870,362.44, 13,590,819.84 and 8,639,781.28
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Solution
The fourth proportional to 9,870,362.44, 13,590,819.84 and 8,639,781.28 is: 11,896,393.02
Step by Step Solution
- Step 1: Write the proportion equation
9,870,362.44 : 13,590,819.84 = 8,639,781.28 : x - Step 2: Convert to fraction form
9,870,362.44/13,590,819.84 = 8,639,781.28/x - Step 3: Cross multiply
9,870,362.44x = 13,590,819.84 × 8,639,781.28 - Step 4: Simplify right side
9,870,362.44x = 117,421,710,833,484.58 - Step 5: Solve for x
x = 117,421,710,833,484.58/9,870,362.44 - Step 6: Final answer
x = 11,896,393.02
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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.