Finding the Fourth Proportional to 154,807,017.92, 213,585,589.20 and 87,814,935.08
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Solution
The fourth proportional to 154,807,017.92, 213,585,589.20 and 87,814,935.08 is: 121,157,328.02
Step by Step Solution
- Step 1: Write the proportion equation
154,807,017.92 : 213,585,589.20 = 87,814,935.08 : x - Step 2: Convert to fraction form
154,807,017.92/213,585,589.20 = 87,814,935.08/x - Step 3: Cross multiply
154,807,017.92x = 213,585,589.20 × 87,814,935.08 - Step 4: Simplify right side
154,807,017.92x = 18,756,004,649,621,548 - Step 5: Solve for x
x = 18,756,004,649,621,548/154,807,017.92 - Step 6: Final answer
x = 121,157,328.02
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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.