Finding the Fourth Proportional to 325,936,943.55, 488,905,415.33 and 249,409,439.55
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Solution
The fourth proportional to 325,936,943.55, 488,905,415.33 and 249,409,439.55 is: 374,114,159.33
Step by Step Solution
- Step 1: Write the proportion equation
325,936,943.55 : 488,905,415.33 = 249,409,439.55 : x - Step 2: Convert to fraction form
325,936,943.55/488,905,415.33 = 249,409,439.55/x - Step 3: Cross multiply
325,936,943.55x = 488,905,415.33 × 249,409,439.55 - Step 4: Simplify right side
325,936,943.55x = 121,937,625,629,168,240 - Step 5: Solve for x
x = 121,937,625,629,168,240/325,936,943.55 - Step 6: Final answer
x = 374,114,159.33
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1.5x scale
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.