Finding the Fourth Proportional to 99,708,957.57, 137,621,319.70 and 58,469,135.97
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Solution
The fourth proportional to 99,708,957.57, 137,621,319.70 and 58,469,135.97 is: 80,700,870.31
Step by Step Solution
- Step 1: Write the proportion equation
99,708,957.57 : 137,621,319.70 = 58,469,135.97 : x - Step 2: Convert to fraction form
99,708,957.57/137,621,319.70 = 58,469,135.97/x - Step 3: Cross multiply
99,708,957.57x = 137,621,319.70 × 58,469,135.97 - Step 4: Simplify right side
99,708,957.57x = 8,046,599,653,910,139 - Step 5: Solve for x
x = 8,046,599,653,910,139/99,708,957.57 - Step 6: Final answer
x = 80,700,870.31
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.