Finding the Fourth Proportional to 472,393,941.70, 708,590,912.55 and 165,575,337.70
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Solution
The fourth proportional to 472,393,941.70, 708,590,912.55 and 165,575,337.70 is: 248,363,006.55
Step by Step Solution
- Step 1: Write the proportion equation
472,393,941.70 : 708,590,912.55 = 165,575,337.70 : x - Step 2: Convert to fraction form
472,393,941.70/708,590,912.55 = 165,575,337.70/x - Step 3: Cross multiply
472,393,941.70x = 708,590,912.55 × 165,575,337.70 - Step 4: Simplify right side
472,393,941.70x = 117,325,179,636,617,408 - Step 5: Solve for x
x = 117,325,179,636,617,408/472,393,941.70 - Step 6: Final answer
x = 248,363,006.55
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1.5x scale
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.