Finding the Fourth Proportional to 381,609,126.70, 572,413,690.06 and 260,676,774.70
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Solution
The fourth proportional to 381,609,126.70, 572,413,690.06 and 260,676,774.70 is: 391,015,162.06
Step by Step Solution
- Step 1: Write the proportion equation
381,609,126.70 : 572,413,690.06 = 260,676,774.70 : x - Step 2: Convert to fraction form
381,609,126.70/572,413,690.06 = 260,676,774.70/x - Step 3: Cross multiply
381,609,126.70x = 572,413,690.06 × 260,676,774.70 - Step 4: Simplify right side
381,609,126.70x = 149,214,954,518,966,240 - Step 5: Solve for x
x = 149,214,954,518,966,240/381,609,126.70 - Step 6: Final answer
x = 391,015,162.06
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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.