Finding the Fourth Proportional to 325,926,511.80, 488,889,767.70 and 249,399,007.80
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Solution
The fourth proportional to 325,926,511.80, 488,889,767.70 and 249,399,007.80 is: 374,098,511.70
Step by Step Solution
- Step 1: Write the proportion equation
325,926,511.80 : 488,889,767.70 = 249,399,007.80 : x - Step 2: Convert to fraction form
325,926,511.80/488,889,767.70 = 249,399,007.80/x - Step 3: Cross multiply
325,926,511.80x = 488,889,767.70 × 249,399,007.80 - Step 4: Simplify right side
325,926,511.80x = 121,928,622,987,952,496 - Step 5: Solve for x
x = 121,928,622,987,952,496/325,926,511.80 - Step 6: Final answer
x = 374,098,511.70
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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.