Finding the Fourth Proportional to 74,069,869.49, 102,251,864.46 and 49,331,225.33
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Solution
The fourth proportional to 74,069,869.49, 102,251,864.46 and 49,331,225.33 is: 68,100,697.36
Step by Step Solution
- Step 1: Write the proportion equation
74,069,869.49 : 102,251,864.46 = 49,331,225.33 : x - Step 2: Convert to fraction form
74,069,869.49/102,251,864.46 = 49,331,225.33/x - Step 3: Cross multiply
74,069,869.49x = 102,251,864.46 × 49,331,225.33 - Step 4: Simplify right side
74,069,869.49x = 5,044,209,765,577,619 - Step 5: Solve for x
x = 5,044,209,765,577,619/74,069,869.49 - Step 6: Final answer
x = 68,100,697.36
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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.