Finding the Fourth Proportional to 99,708,883.63, 137,621,217.35 and 58,469,062.03
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Solution
The fourth proportional to 99,708,883.63, 137,621,217.35 and 58,469,062.03 is: 80,700,768.09
Step by Step Solution
- Step 1: Write the proportion equation
99,708,883.63 : 137,621,217.35 = 58,469,062.03 : x - Step 2: Convert to fraction form
99,708,883.63/137,621,217.35 = 58,469,062.03/x - Step 3: Cross multiply
99,708,883.63x = 137,621,217.35 × 58,469,062.03 - Step 4: Simplify right side
99,708,883.63x = 8,046,583,493,683,382 - Step 5: Solve for x
x = 8,046,583,493,683,382/99,708,883.63 - Step 6: Final answer
x = 80,700,768.09
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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.