Finding the Fourth Proportional to 5,236,698,472.20, 7,226,796,956.85 and 2,857,989,073.95
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Solution
The fourth proportional to 5,236,698,472.20, 7,226,796,956.85 and 2,857,989,073.95 is: 3,944,108,459.17
Step by Step Solution
- Step 1: Write the proportion equation
5,236,698,472.20 : 7,226,796,956.85 = 2,857,989,073.95 : x - Step 2: Convert to fraction form
5,236,698,472.20/7,226,796,956.85 = 2,857,989,073.95/x - Step 3: Cross multiply
5,236,698,472.20x = 7,226,796,956.85 × 2,857,989,073.95 - Step 4: Simplify right side
5,236,698,472.20x = 20,654,106,742,332,407,808 - Step 5: Solve for x
x = 20,654,106,742,332,407,808/5,236,698,472.20 - Step 6: Final answer
x = 3,944,108,459.17
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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.