Finding the Fourth Proportional to 632,489,207.10, 872,787,449.80 and 384,943,201.98
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Solution
The fourth proportional to 632,489,207.10, 872,787,449.80 and 384,943,201.98 is: 531,192,614.52
Step by Step Solution
- Step 1: Write the proportion equation
632,489,207.10 : 872,787,449.80 = 384,943,201.98 : x - Step 2: Convert to fraction form
632,489,207.10/872,787,449.80 = 384,943,201.98/x - Step 3: Cross multiply
632,489,207.10x = 872,787,449.80 × 384,943,201.98 - Step 4: Simplify right side
632,489,207.10x = 335,973,595,573,970,496 - Step 5: Solve for x
x = 335,973,595,573,970,496/632,489,207.10 - Step 6: Final answer
x = 531,192,614.52
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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.