Finding the Fourth Proportional to 68,247,882.61, 94,171,543.11 and 38,875,483.06
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Solution
The fourth proportional to 68,247,882.61, 94,171,543.11 and 38,875,483.06 is: 53,642,165.72
Step by Step Solution
- Step 1: Write the proportion equation
68,247,882.61 : 94,171,543.11 = 38,875,483.06 : x - Step 2: Convert to fraction form
68,247,882.61/94,171,543.11 = 38,875,483.06/x - Step 3: Cross multiply
68,247,882.61x = 94,171,543.11 × 38,875,483.06 - Step 4: Simplify right side
68,247,882.61x = 3,660,964,228,906,865 - Step 5: Solve for x
x = 3,660,964,228,906,865/68,247,882.61 - Step 6: Final answer
x = 53,642,165.72
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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.