Finding the Fourth Proportional to 7,141,366.19, 9,855,054.87 and 3,878,158.07
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Solution
The fourth proportional to 7,141,366.19, 9,855,054.87 and 3,878,158.07 is: 5,351,841.59
Step by Step Solution
- Step 1: Write the proportion equation
7,141,366.19 : 9,855,054.87 = 3,878,158.07 : x - Step 2: Convert to fraction form
7,141,366.19/9,855,054.87 = 3,878,158.07/x - Step 3: Cross multiply
7,141,366.19x = 9,855,054.87 × 3,878,158.07 - Step 4: Simplify right side
7,141,366.19x = 38,219,460,574,383.30 - Step 5: Solve for x
x = 38,219,460,574,383.30/7,141,366.19 - Step 6: Final answer
x = 5,351,841.59
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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.