Finding the Fourth Proportional to 814,519,567.35, 1,124,599,359.38 and 762,480,864.63
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Solution
The fourth proportional to 814,519,567.35, 1,124,599,359.38 and 762,480,864.63 is: 1,052,750,021.33
Step by Step Solution
- Step 1: Write the proportion equation
814,519,567.35 : 1,124,599,359.38 = 762,480,864.63 : x - Step 2: Convert to fraction form
814,519,567.35/1,124,599,359.38 = 762,480,864.63/x - Step 3: Cross multiply
814,519,567.35x = 1,124,599,359.38 × 762,480,864.63 - Step 4: Simplify right side
814,519,567.35x = 857,485,491,898,594,048 - Step 5: Solve for x
x = 857,485,491,898,594,048/814,519,567.35 - Step 6: Final answer
x = 1,052,750,021.33
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.