Finding the Fourth Proportional to 384,597,642.26, 530,744,945.99 and 208,385,776.73
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Solution
The fourth proportional to 384,597,642.26, 530,744,945.99 and 208,385,776.73 is: 287,572,480.07
Step by Step Solution
- Step 1: Write the proportion equation
384,597,642.26 : 530,744,945.99 = 208,385,776.73 : x - Step 2: Convert to fraction form
384,597,642.26/530,744,945.99 = 208,385,776.73/x - Step 3: Cross multiply
384,597,642.26x = 530,744,945.99 × 208,385,776.73 - Step 4: Simplify right side
384,597,642.26x = 110,599,697,811,952,400 - Step 5: Solve for x
x = 110,599,697,811,952,400/384,597,642.26 - Step 6: Final answer
x = 287,572,480.07
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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.