Finding the Fourth Proportional to 754,653,469.20, 1,131,980,203.80 and 522,201,175.80
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Solution
The fourth proportional to 754,653,469.20, 1,131,980,203.80 and 522,201,175.80 is: 783,301,763.70
Step by Step Solution
- Step 1: Write the proportion equation
754,653,469.20 : 1,131,980,203.80 = 522,201,175.80 : x - Step 2: Convert to fraction form
754,653,469.20/1,131,980,203.80 = 522,201,175.80/x - Step 3: Cross multiply
754,653,469.20x = 1,131,980,203.80 × 522,201,175.80 - Step 4: Simplify right side
754,653,469.20x = 591,121,393,406,683,648 - Step 5: Solve for x
x = 591,121,393,406,683,648/754,653,469.20 - Step 6: Final answer
x = 783,301,763.70
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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.