Finding the Fourth Proportional to 10,888,087.20, 15,026,991.12 and 6,243,689.76
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Solution
The fourth proportional to 10,888,087.20, 15,026,991.12 and 6,243,689.76 is: 8,617,112.34
Step by Step Solution
- Step 1: Write the proportion equation
10,888,087.20 : 15,026,991.12 = 6,243,689.76 : x - Step 2: Convert to fraction form
10,888,087.20/15,026,991.12 = 6,243,689.76/x - Step 3: Cross multiply
10,888,087.20x = 15,026,991.12 × 6,243,689.76 - Step 4: Simplify right side
10,888,087.20x = 93,823,870,579,554.92 - Step 5: Solve for x
x = 93,823,870,579,554.92/10,888,087.20 - Step 6: Final answer
x = 8,617,112.34
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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.