Finding the Fourth Proportional to 508,608,237.80, 762,912,356.70 and 125,655,789.80
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Solution
The fourth proportional to 508,608,237.80, 762,912,356.70 and 125,655,789.80 is: 188,483,684.70
Step by Step Solution
- Step 1: Write the proportion equation
508,608,237.80 : 762,912,356.70 = 125,655,789.80 : x - Step 2: Convert to fraction form
508,608,237.80/762,912,356.70 = 125,655,789.80/x - Step 3: Cross multiply
508,608,237.80x = 762,912,356.70 × 125,655,789.80 - Step 4: Simplify right side
508,608,237.80x = 95,864,354,729,317,824 - Step 5: Solve for x
x = 95,864,354,729,317,824/508,608,237.80 - Step 6: Final answer
x = 188,483,684.70
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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.