Finding the Fourth Proportional to 313,684,910.78, 470,427,539.76 and 103,556,472.12
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Solution
The fourth proportional to 313,684,910.78, 470,427,539.76 and 103,556,472.12 is: 155,301,752.59
Step by Step Solution
- Step 1: Write the proportion equation
313,684,910.78 : 470,427,539.76 = 103,556,472.12 : x - Step 2: Convert to fraction form
313,684,910.78/470,427,539.76 = 103,556,472.12/x - Step 3: Cross multiply
313,684,910.78x = 470,427,539.76 × 103,556,472.12 - Step 4: Simplify right side
313,684,910.78x = 48,715,816,405,636,632 - Step 5: Solve for x
x = 48,715,816,405,636,632/313,684,910.78 - Step 6: Final answer
x = 155,301,752.59
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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.