Finding the Fourth Proportional to 639,614,398.96, 882,668,165.88 and 346,258,966.96
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Solution
The fourth proportional to 639,614,398.96, 882,668,165.88 and 346,258,966.96 is: 477,837,534.28
Step by Step Solution
- Step 1: Write the proportion equation
639,614,398.96 : 882,668,165.88 = 346,258,966.96 : x - Step 2: Convert to fraction form
639,614,398.96/882,668,165.88 = 346,258,966.96/x - Step 3: Cross multiply
639,614,398.96x = 882,668,165.88 × 346,258,966.96 - Step 4: Simplify right side
639,614,398.96x = 305,631,767,286,086,720 - Step 5: Solve for x
x = 305,631,767,286,086,720/639,614,398.96 - Step 6: Final answer
x = 477,837,534.28
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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.