Finding the Fourth Proportional to 524,447,999.70, 786,671,999.55 and 252,350,207.70
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Solution
The fourth proportional to 524,447,999.70, 786,671,999.55 and 252,350,207.70 is: 378,525,311.55
Step by Step Solution
- Step 1: Write the proportion equation
524,447,999.70 : 786,671,999.55 = 252,350,207.70 : x - Step 2: Convert to fraction form
524,447,999.70/786,671,999.55 = 252,350,207.70/x - Step 3: Cross multiply
524,447,999.70x = 786,671,999.55 × 252,350,207.70 - Step 4: Simplify right side
524,447,999.70x = 198,516,842,478,216,800 - Step 5: Solve for x
x = 198,516,842,478,216,800/524,447,999.70 - Step 6: Final answer
x = 378,525,311.55
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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.