Finding the Fourth Proportional to 486,995,122.87, 730,482,449.91 and 118,532,130.79
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Solution
The fourth proportional to 486,995,122.87, 730,482,449.91 and 118,532,130.79 is: 177,795,705.18
Step by Step Solution
- Step 1: Write the proportion equation
486,995,122.87 : 730,482,449.91 = 118,532,130.79 : x - Step 2: Convert to fraction form
486,995,122.87/730,482,449.91 = 118,532,130.79/x - Step 3: Cross multiply
486,995,122.87x = 730,482,449.91 × 118,532,130.79 - Step 4: Simplify right side
486,995,122.87x = 86,585,641,288,286,672 - Step 5: Solve for x
x = 86,585,641,288,286,672/486,995,122.87 - Step 6: Final answer
x = 177,795,705.18
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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.