Finding the Fourth Proportional to 1,241,177,986.16, 1,861,206,713.56 and 355,660,802.24
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Solution
The fourth proportional to 1,241,177,986.16, 1,861,206,713.56 and 355,660,802.24 is: 533,330,658.67
Step by Step Solution
- Step 1: Write the proportion equation
1,241,177,986.16 : 1,861,206,713.56 = 355,660,802.24 : x - Step 2: Convert to fraction form
1,241,177,986.16/1,861,206,713.56 = 355,660,802.24/x - Step 3: Cross multiply
1,241,177,986.16x = 1,861,206,713.56 × 355,660,802.24 - Step 4: Simplify right side
1,241,177,986.16x = 661,958,272,879,223,424 - Step 5: Solve for x
x = 661,958,272,879,223,424/1,241,177,986.16 - Step 6: Final answer
x = 533,330,658.67
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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.