Finding the Fourth Proportional to 911,351,614.68, 1,257,671,266.80 and 493,663,899.96
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Solution
The fourth proportional to 911,351,614.68, 1,257,671,266.80 and 493,663,899.96 is: 681,259,452.92
Step by Step Solution
- Step 1: Write the proportion equation
911,351,614.68 : 1,257,671,266.80 = 493,663,899.96 : x - Step 2: Convert to fraction form
911,351,614.68/1,257,671,266.80 = 493,663,899.96/x - Step 3: Cross multiply
911,351,614.68x = 1,257,671,266.80 × 493,663,899.96 - Step 4: Simplify right side
911,351,614.68x = 620,866,902,436,121,600 - Step 5: Solve for x
x = 620,866,902,436,121,600/911,351,614.68 - Step 6: Final answer
x = 681,259,452.92
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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.