Finding the Fourth Proportional to 1,313,270,311.35, 1,812,299,592.74 and 726,563,646.39
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Solution
The fourth proportional to 1,313,270,311.35, 1,812,299,592.74 and 726,563,646.39 is: 1,002,650,398.07
Step by Step Solution
- Step 1: Write the proportion equation
1,313,270,311.35 : 1,812,299,592.74 = 726,563,646.39 : x - Step 2: Convert to fraction form
1,313,270,311.35/1,812,299,592.74 = 726,563,646.39/x - Step 3: Cross multiply
1,313,270,311.35x = 1,812,299,592.74 × 726,563,646.39 - Step 4: Simplify right side
1,313,270,311.35x = 1,316,751,000,448,653,568 - Step 5: Solve for x
x = 1,316,751,000,448,653,568/1,313,270,311.35 - Step 6: Final answer
x = 1,002,650,398.07
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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.