Finding the Fourth Proportional to 1,778,472,389.22, 2,454,306,519.18 and 985,531,610.49
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Solution
The fourth proportional to 1,778,472,389.22, 2,454,306,519.18 and 985,531,610.49 is: 1,360,041,725.22
Step by Step Solution
- Step 1: Write the proportion equation
1,778,472,389.22 : 2,454,306,519.18 = 985,531,610.49 : x - Step 2: Convert to fraction form
1,778,472,389.22/2,454,306,519.18 = 985,531,610.49/x - Step 3: Cross multiply
1,778,472,389.22x = 2,454,306,519.18 × 985,531,610.49 - Step 4: Simplify right side
1,778,472,389.22x = 2,418,796,656,483,571,200 - Step 5: Solve for x
x = 2,418,796,656,483,571,200/1,778,472,389.22 - Step 6: Final answer
x = 1,360,041,725.22
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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.