Finding the Fourth Proportional to 163,703,587.40, 245,555,381.10 and 81,835,101.35
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Solution
The fourth proportional to 163,703,587.40, 245,555,381.10 and 81,835,101.35 is: 122,752,652.03
Step by Step Solution
- Step 1: Write the proportion equation
163,703,587.40 : 245,555,381.10 = 81,835,101.35 : x - Step 2: Convert to fraction form
163,703,587.40/245,555,381.10 = 81,835,101.35/x - Step 3: Cross multiply
163,703,587.40x = 245,555,381.10 × 81,835,101.35 - Step 4: Simplify right side
163,703,587.40x = 20,095,049,499,356,372 - Step 5: Solve for x
x = 20,095,049,499,356,372/163,703,587.40 - Step 6: Final answer
x = 122,752,652.03
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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.