Finding the Fourth Proportional to 1,351,224,776.49, 2,026,445,669.85 and 405,784,720.23
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Solution
The fourth proportional to 1,351,224,776.49, 2,026,445,669.85 and 405,784,720.23 is: 608,559,510.98
Step by Step Solution
- Step 1: Write the proportion equation
1,351,224,776.49 : 2,026,445,669.85 = 405,784,720.23 : x - Step 2: Convert to fraction form
1,351,224,776.49/2,026,445,669.85 = 405,784,720.23/x - Step 3: Cross multiply
1,351,224,776.49x = 2,026,445,669.85 × 405,784,720.23 - Step 4: Simplify right side
1,351,224,776.49x = 822,300,689,201,377,152 - Step 5: Solve for x
x = 822,300,689,201,377,152/1,351,224,776.49 - Step 6: Final answer
x = 608,559,510.98
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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.