Finding the Fourth Proportional to 108,889,694.20, 163,334,541.30 and 84,230,831.80
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Solution
The fourth proportional to 108,889,694.20, 163,334,541.30 and 84,230,831.80 is: 126,346,247.70
Step by Step Solution
- Step 1: Write the proportion equation
108,889,694.20 : 163,334,541.30 = 84,230,831.80 : x - Step 2: Convert to fraction form
108,889,694.20/163,334,541.30 = 84,230,831.80/x - Step 3: Cross multiply
108,889,694.20x = 163,334,541.30 × 84,230,831.80 - Step 4: Simplify right side
108,889,694.20x = 13,757,804,275,370,454 - Step 5: Solve for x
x = 13,757,804,275,370,454/108,889,694.20 - Step 6: Final answer
x = 126,346,247.70
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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.