Finding the Fourth Proportional to 197,216,700.48, 272,246,220.05 and 117,859,765.23
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Solution
The fourth proportional to 197,216,700.48, 272,246,220.05 and 117,859,765.23 is: 162,698,572.19
Step by Step Solution
- Step 1: Write the proportion equation
197,216,700.48 : 272,246,220.05 = 117,859,765.23 : x - Step 2: Convert to fraction form
197,216,700.48/272,246,220.05 = 117,859,765.23/x - Step 3: Cross multiply
197,216,700.48x = 272,246,220.05 × 117,859,765.23 - Step 4: Simplify right side
197,216,700.48x = 32,086,875,579,258,624 - Step 5: Solve for x
x = 32,086,875,579,258,624/197,216,700.48 - Step 6: Final answer
x = 162,698,572.19
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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.