Finding the Fourth Proportional to 728,117,231.18, 1,092,056,272.52 and 313,482,423.56
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Solution
The fourth proportional to 728,117,231.18, 1,092,056,272.52 and 313,482,423.56 is: 470,172,154.03
Step by Step Solution
- Step 1: Write the proportion equation
728,117,231.18 : 1,092,056,272.52 = 313,482,423.56 : x - Step 2: Convert to fraction form
728,117,231.18/1,092,056,272.52 = 313,482,423.56/x - Step 3: Cross multiply
728,117,231.18x = 1,092,056,272.52 × 313,482,423.56 - Step 4: Simplify right side
728,117,231.18x = 342,340,446,966,441,792 - Step 5: Solve for x
x = 342,340,446,966,441,792/728,117,231.18 - Step 6: Final answer
x = 470,172,154.03
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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.