Finding the Fourth Proportional to 325,873,117.30, 488,809,675.95 and 289,593,411.70
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Solution
The fourth proportional to 325,873,117.30, 488,809,675.95 and 289,593,411.70 is: 434,390,117.55
Step by Step Solution
- Step 1: Write the proportion equation
325,873,117.30 : 488,809,675.95 = 289,593,411.70 : x - Step 2: Convert to fraction form
325,873,117.30/488,809,675.95 = 289,593,411.70/x - Step 3: Cross multiply
325,873,117.30x = 488,809,675.95 × 289,593,411.70 - Step 4: Simplify right side
325,873,117.30x = 141,556,061,730,331,936 - Step 5: Solve for x
x = 141,556,061,730,331,936/325,873,117.30 - Step 6: Final answer
x = 434,390,117.55
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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.