Finding the Fourth Proportional to 814,519,567.23, 1,124,599,359.20 and 762,480,864.51
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Solution
The fourth proportional to 814,519,567.23, 1,124,599,359.20 and 762,480,864.51 is: 1,052,750,021.15
Step by Step Solution
- Step 1: Write the proportion equation
814,519,567.23 : 1,124,599,359.20 = 762,480,864.51 : x - Step 2: Convert to fraction form
814,519,567.23/1,124,599,359.20 = 762,480,864.51/x - Step 3: Cross multiply
814,519,567.23x = 1,124,599,359.20 × 762,480,864.51 - Step 4: Simplify right side
814,519,567.23x = 857,485,491,630,208,000 - Step 5: Solve for x
x = 857,485,491,630,208,000/814,519,567.23 - Step 6: Final answer
x = 1,052,750,021.15
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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.