Finding the Fourth Proportional to 99,708,946.73, 137,621,304.70 and 58,469,125.13
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Solution
The fourth proportional to 99,708,946.73, 137,621,304.70 and 58,469,125.13 is: 80,700,855.33
Step by Step Solution
- Step 1: Write the proportion equation
99,708,946.73 : 137,621,304.70 = 58,469,125.13 : x - Step 2: Convert to fraction form
99,708,946.73/137,621,304.70 = 58,469,125.13/x - Step 3: Cross multiply
99,708,946.73x = 137,621,304.70 × 58,469,125.13 - Step 4: Simplify right side
99,708,946.73x = 8,046,597,285,058,157 - Step 5: Solve for x
x = 8,046,597,285,058,157/99,708,946.73 - Step 6: Final answer
x = 80,700,855.33
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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.