Finding the Fourth Proportional to 827,746,865.19, 1,236,343,638.22 and 748,842,201.54
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Solution
The fourth proportional to 827,746,865.19, 1,236,343,638.22 and 748,842,201.54 is: 1,118,489,638.36
Step by Step Solution
- Step 1: Write the proportion equation
827,746,865.19 : 1,236,343,638.22 = 748,842,201.54 : x - Step 2: Convert to fraction form
827,746,865.19/1,236,343,638.22 = 748,842,201.54/x - Step 3: Cross multiply
827,746,865.19x = 1,236,343,638.22 × 748,842,201.54 - Step 4: Simplify right side
827,746,865.19x = 925,826,291,902,765,952 - Step 5: Solve for x
x = 925,826,291,902,765,952/827,746,865.19 - Step 6: Final answer
x = 1,118,489,638.36
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.