Finding the Fourth Proportional to 855,729,265.55, 1,283,220,116.22 and 302,847,941.75
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Solution
The fourth proportional to 855,729,265.55, 1,283,220,116.22 and 302,847,941.75 is: 454,139,628.80
Step by Step Solution
- Step 1: Write the proportion equation
855,729,265.55 : 1,283,220,116.22 = 302,847,941.75 : x - Step 2: Convert to fraction form
855,729,265.55/1,283,220,116.22 = 302,847,941.75/x - Step 3: Cross multiply
855,729,265.55x = 1,283,220,116.22 × 302,847,941.75 - Step 4: Simplify right side
855,729,265.55x = 388,620,571,009,422,784 - Step 5: Solve for x
x = 388,620,571,009,422,784/855,729,265.55 - Step 6: Final answer
x = 454,139,628.80
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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.