Finding the Fourth Proportional to 99,708,947.23, 137,621,305.39 and 58,469,125.63
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Solution
The fourth proportional to 99,708,947.23, 137,621,305.39 and 58,469,125.63 is: 80,700,856.02
Step by Step Solution
- Step 1: Write the proportion equation
99,708,947.23 : 137,621,305.39 = 58,469,125.63 : x - Step 2: Convert to fraction form
99,708,947.23/137,621,305.39 = 58,469,125.63/x - Step 3: Cross multiply
99,708,947.23x = 137,621,305.39 × 58,469,125.63 - Step 4: Simplify right side
99,708,947.23x = 8,046,597,394,212,506 - Step 5: Solve for x
x = 8,046,597,394,212,506/99,708,947.23 - Step 6: Final answer
x = 80,700,856.02
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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.