Finding the Fourth Proportional to 159,994,306.62, 220,791,114.63 and 90,402,217.02
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Solution
The fourth proportional to 159,994,306.62, 220,791,114.63 and 90,402,217.02 is: 124,754,478.35
Step by Step Solution
- Step 1: Write the proportion equation
159,994,306.62 : 220,791,114.63 = 90,402,217.02 : x - Step 2: Convert to fraction form
159,994,306.62/220,791,114.63 = 90,402,217.02/x - Step 3: Cross multiply
159,994,306.62x = 220,791,114.63 × 90,402,217.02 - Step 4: Simplify right side
159,994,306.62x = 19,960,006,260,868,956 - Step 5: Solve for x
x = 19,960,006,260,868,956/159,994,306.62 - Step 6: Final answer
x = 124,754,478.35
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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.