Finding the Fourth Proportional to 3,179,312,315.66, 4,386,700,478.67 and 2,672,601,528.98
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Solution
The fourth proportional to 3,179,312,315.66, 4,386,700,478.67 and 2,672,601,528.98 is: 3,687,559,208.55
Step by Step Solution
- Step 1: Write the proportion equation
3,179,312,315.66 : 4,386,700,478.67 = 2,672,601,528.98 : x - Step 2: Convert to fraction form
3,179,312,315.66/4,386,700,478.67 = 2,672,601,528.98/x - Step 3: Cross multiply
3,179,312,315.66x = 4,386,700,478.67 × 2,672,601,528.98 - Step 4: Simplify right side
3,179,312,315.66x = 11,723,902,406,470,739,968 - Step 5: Solve for x
x = 11,723,902,406,470,739,968/3,179,312,315.66 - Step 6: Final answer
x = 3,687,559,208.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.