Finding the Fourth Proportional to 381,609,101.70, 572,413,652.55 and 260,676,749.70
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Solution
The fourth proportional to 381,609,101.70, 572,413,652.55 and 260,676,749.70 is: 391,015,124.55
Step by Step Solution
- Step 1: Write the proportion equation
381,609,101.70 : 572,413,652.55 = 260,676,749.70 : x - Step 2: Convert to fraction form
381,609,101.70/572,413,652.55 = 260,676,749.70/x - Step 3: Cross multiply
381,609,101.70x = 572,413,652.55 × 260,676,749.70 - Step 4: Simplify right side
381,609,101.70x = 149,214,930,430,639,104 - Step 5: Solve for x
x = 149,214,930,430,639,104/381,609,101.70 - Step 6: Final answer
x = 391,015,124.55
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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.