Finding the Fourth Proportional to 121,130,674.80, 181,444,069.80 and 100,975,282.80
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Solution
The fourth proportional to 121,130,674.80, 181,444,069.80 and 100,975,282.80 is: 151,252,903.45
Step by Step Solution
- Step 1: Write the proportion equation
121,130,674.80 : 181,444,069.80 = 100,975,282.80 : x - Step 2: Convert to fraction form
121,130,674.80/181,444,069.80 = 100,975,282.80/x - Step 3: Cross multiply
121,130,674.80x = 181,444,069.80 × 100,975,282.80 - Step 4: Simplify right side
121,130,674.80x = 18,321,366,260,437,940 - Step 5: Solve for x
x = 18,321,366,260,437,940/121,130,674.80 - Step 6: Final answer
x = 151,252,903.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.