Finding the Fourth Proportional to 108,889,406.45, 163,334,109.68 and 84,230,544.05
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Solution
The fourth proportional to 108,889,406.45, 163,334,109.68 and 84,230,544.05 is: 126,345,816.08
Step by Step Solution
- Step 1: Write the proportion equation
108,889,406.45 : 163,334,109.68 = 84,230,544.05 : x - Step 2: Convert to fraction form
108,889,406.45/163,334,109.68 = 84,230,544.05/x - Step 3: Cross multiply
108,889,406.45x = 163,334,109.68 × 84,230,544.05 - Step 4: Simplify right side
108,889,406.45x = 13,757,720,920,268,772 - Step 5: Solve for x
x = 13,757,720,920,268,772/108,889,406.45 - Step 6: Final answer
x = 126,345,816.08
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1.5x scale
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.