Finding the Fourth Proportional to 995,731,202.80, 1,493,596,804.20 and 421,227,881.20
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Solution
The fourth proportional to 995,731,202.80, 1,493,596,804.20 and 421,227,881.20 is: 631,841,821.80
Step by Step Solution
- Step 1: Write the proportion equation
995,731,202.80 : 1,493,596,804.20 = 421,227,881.20 : x - Step 2: Convert to fraction form
995,731,202.80/1,493,596,804.20 = 421,227,881.20/x - Step 3: Cross multiply
995,731,202.80x = 1,493,596,804.20 × 421,227,881.20 - Step 4: Simplify right side
995,731,202.80x = 629,144,617,200,257,280 - Step 5: Solve for x
x = 629,144,617,200,257,280/995,731,202.80 - Step 6: Final answer
x = 631,841,821.80
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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.