Finding the Fourth Proportional to 1,248,959,519.70, 1,723,566,160.02 and 684,354,691.44
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Solution
The fourth proportional to 1,248,959,519.70, 1,723,566,160.02 and 684,354,691.44 is: 944,410,582.58
Step by Step Solution
- Step 1: Write the proportion equation
1,248,959,519.70 : 1,723,566,160.02 = 684,354,691.44 : x - Step 2: Convert to fraction form
1,248,959,519.70/1,723,566,160.02 = 684,354,691.44/x - Step 3: Cross multiply
1,248,959,519.70x = 1,723,566,160.02 × 684,354,691.44 - Step 4: Simplify right side
1,248,959,519.70x = 1,179,530,587,616,912,896 - Step 5: Solve for x
x = 1,179,530,587,616,912,896/1,248,959,519.70 - Step 6: Final answer
x = 944,410,582.58
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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.