Finding the Fourth Proportional to 220,972,489.43, 304,949,397.05 and 120,506,408.18
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Solution
The fourth proportional to 220,972,489.43, 304,949,397.05 and 120,506,408.18 is: 166,302,857.92
Step by Step Solution
- Step 1: Write the proportion equation
220,972,489.43 : 304,949,397.05 = 120,506,408.18 : x - Step 2: Convert to fraction form
220,972,489.43/304,949,397.05 = 120,506,408.18/x - Step 3: Cross multiply
220,972,489.43x = 304,949,397.05 × 120,506,408.18 - Step 4: Simplify right side
220,972,489.43x = 36,748,356,513,024,912 - Step 5: Solve for x
x = 36,748,356,513,024,912/220,972,489.43 - Step 6: Final answer
x = 166,302,857.92
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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.