Finding the Fourth Proportional to 5,163,429,400.80, 7,745,144,101.20 and 1,672,340,327.70
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Solution
The fourth proportional to 5,163,429,400.80, 7,745,144,101.20 and 1,672,340,327.70 is: 2,508,510,491.55
Step by Step Solution
- Step 1: Write the proportion equation
5,163,429,400.80 : 7,745,144,101.20 = 1,672,340,327.70 : x - Step 2: Convert to fraction form
5,163,429,400.80/7,745,144,101.20 = 1,672,340,327.70/x - Step 3: Cross multiply
5,163,429,400.80x = 7,745,144,101.20 × 1,672,340,327.70 - Step 4: Simplify right side
5,163,429,400.80x = 12,952,516,824,284,530,688 - Step 5: Solve for x
x = 12,952,516,824,284,530,688/5,163,429,400.80 - Step 6: Final answer
x = 2,508,510,491.55
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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.