Finding the Fourth Proportional to 71,765,473.84, 99,165,901.40 and 51,103,047.92
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Solution
The fourth proportional to 71,765,473.84, 99,165,901.40 and 51,103,047.92 is: 70,614,454.84
Step by Step Solution
- Step 1: Write the proportion equation
71,765,473.84 : 99,165,901.40 = 51,103,047.92 : x - Step 2: Convert to fraction form
71,765,473.84/99,165,901.40 = 51,103,047.92/x - Step 3: Cross multiply
71,765,473.84x = 99,165,901.40 × 51,103,047.92 - Step 4: Simplify right side
71,765,473.84x = 5,067,679,811,274,196 - Step 5: Solve for x
x = 5,067,679,811,274,196/71,765,473.84 - Step 6: Final answer
x = 70,614,454.84
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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.