Finding the Fourth Proportional to 209,952,495.80, 314,928,743.70 and 196,515,567.80
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Solution
The fourth proportional to 209,952,495.80, 314,928,743.70 and 196,515,567.80 is: 294,773,351.70
Step by Step Solution
- Step 1: Write the proportion equation
209,952,495.80 : 314,928,743.70 = 196,515,567.80 : x - Step 2: Convert to fraction form
209,952,495.80/314,928,743.70 = 196,515,567.80/x - Step 3: Cross multiply
209,952,495.80x = 314,928,743.70 × 196,515,567.80 - Step 4: Simplify right side
209,952,495.80x = 61,888,400,884,746,176 - Step 5: Solve for x
x = 61,888,400,884,746,176/209,952,495.80 - Step 6: Final answer
x = 294,773,351.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.