Finding the Fourth Proportional to 99,674,973.23, 137,551,468.21 and 55,020,957.12
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Solution
The fourth proportional to 99,674,973.23, 137,551,468.21 and 55,020,957.12 is: 75,928,923.67
Step by Step Solution
- Step 1: Write the proportion equation
99,674,973.23 : 137,551,468.21 = 55,020,957.12 : x - Step 2: Convert to fraction form
99,674,973.23/137,551,468.21 = 55,020,957.12/x - Step 3: Cross multiply
99,674,973.23x = 137,551,468.21 × 55,020,957.12 - Step 4: Simplify right side
99,674,973.23x = 7,568,213,434,037,901 - Step 5: Solve for x
x = 7,568,213,434,037,901/99,674,973.23 - Step 6: Final answer
x = 75,928,923.67
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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.