Finding the Fourth Proportional to 709,618,549.05, 979,263,175.91 and 396,357,334.65
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Solution
The fourth proportional to 709,618,549.05, 979,263,175.91 and 396,357,334.65 is: 546,967,300.73
Step by Step Solution
- Step 1: Write the proportion equation
709,618,549.05 : 979,263,175.91 = 396,357,334.65 : x - Step 2: Convert to fraction form
709,618,549.05/979,263,175.91 = 396,357,334.65/x - Step 3: Cross multiply
709,618,549.05x = 979,263,175.91 × 396,357,334.65 - Step 4: Simplify right side
709,618,549.05x = 388,138,142,322,599,872 - Step 5: Solve for x
x = 388,138,142,322,599,872/709,618,549.05 - Step 6: Final answer
x = 546,967,300.73
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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.