Finding the Fourth Proportional to 522,638,866.72, 783,958,159.14 and 195,139,918.99
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Solution
The fourth proportional to 522,638,866.72, 783,958,159.14 and 195,139,918.99 is: 292,709,825.86
Step by Step Solution
- Step 1: Write the proportion equation
522,638,866.72 : 783,958,159.14 = 195,139,918.99 : x - Step 2: Convert to fraction form
522,638,866.72/783,958,159.14 = 195,139,918.99/x - Step 3: Cross multiply
522,638,866.72x = 783,958,159.14 × 195,139,918.99 - Step 4: Simplify right side
522,638,866.72x = 152,981,531,666,129,120 - Step 5: Solve for x
x = 152,981,531,666,129,120/522,638,866.72 - Step 6: Final answer
x = 292,709,825.86
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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.