Finding the Fourth Proportional to 756,683,165.80, 1,135,024,748.70 and 445,471,316.20
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Solution
The fourth proportional to 756,683,165.80, 1,135,024,748.70 and 445,471,316.20 is: 668,206,974.30
Step by Step Solution
- Step 1: Write the proportion equation
756,683,165.80 : 1,135,024,748.70 = 445,471,316.20 : x - Step 2: Convert to fraction form
756,683,165.80/1,135,024,748.70 = 445,471,316.20/x - Step 3: Cross multiply
756,683,165.80x = 1,135,024,748.70 × 445,471,316.20 - Step 4: Simplify right side
756,683,165.80x = 505,620,968,722,963,264 - Step 5: Solve for x
x = 505,620,968,722,963,264/756,683,165.80 - Step 6: Final answer
x = 668,206,974.30
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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.