Finding the Fourth Proportional to 487,575,612,073.57, 731,363,418,110.35 and 318,117,890,184.97
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Solution
The fourth proportional to 487,575,612,073.57, 731,363,418,110.35 and 318,117,890,184.97 is: 477,176,835,277.45
Step by Step Solution
- Step 1: Write the proportion equation
487,575,612,073.57 : 731,363,418,110.35 = 318,117,890,184.97 : x - Step 2: Convert to fraction form
487,575,612,073.57/731,363,418,110.35 = 318,117,890,184.97/x - Step 3: Cross multiply
487,575,612,073.57x = 731,363,418,110.35 × 318,117,890,184.97 - Step 4: Simplify right side
487,575,612,073.57x = 232,659,787,527,732,603,125,760 - Step 5: Solve for x
x = 232,659,787,527,732,603,125,760/487,575,612,073.57 - Step 6: Final answer
x = 477,176,835,277.45
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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.