Finding the Fourth Proportional to 108,889,468.70, 163,334,203.05 and 84,230,606.30
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Solution
The fourth proportional to 108,889,468.70, 163,334,203.05 and 84,230,606.30 is: 126,345,909.45
Step by Step Solution
- Step 1: Write the proportion equation
108,889,468.70 : 163,334,203.05 = 84,230,606.30 : x - Step 2: Convert to fraction form
108,889,468.70/163,334,203.05 = 84,230,606.30/x - Step 3: Cross multiply
108,889,468.70x = 163,334,203.05 × 84,230,606.30 - Step 4: Simplify right side
108,889,468.70x = 13,757,738,952,428,810 - Step 5: Solve for x
x = 13,757,738,952,428,810/108,889,468.70 - Step 6: Final answer
x = 126,345,909.45
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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.