Finding the Fourth Proportional to 7,124,602.16, 9,832,070.40 and 3,861,521.84
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Solution
The fourth proportional to 7,124,602.16, 9,832,070.40 and 3,861,521.84 is: 5,328,964.86
Step by Step Solution
- Step 1: Write the proportion equation
7,124,602.16 : 9,832,070.40 = 3,861,521.84 : x - Step 2: Convert to fraction form
7,124,602.16/9,832,070.40 = 3,861,521.84/x - Step 3: Cross multiply
7,124,602.16x = 9,832,070.40 × 3,861,521.84 - Step 4: Simplify right side
7,124,602.16x = 37,966,754,582,017.54 - Step 5: Solve for x
x = 37,966,754,582,017.54/7,124,602.16 - Step 6: Final answer
x = 5,328,964.86
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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.