Finding the Fourth Proportional to 165,080,902.60, 247,621,353.90 and 162,529,985.80
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Solution
The fourth proportional to 165,080,902.60, 247,621,353.90 and 162,529,985.80 is: 243,794,978.70
Step by Step Solution
- Step 1: Write the proportion equation
165,080,902.60 : 247,621,353.90 = 162,529,985.80 : x - Step 2: Convert to fraction form
165,080,902.60/247,621,353.90 = 162,529,985.80/x - Step 3: Cross multiply
165,080,902.60x = 247,621,353.90 × 162,529,985.80 - Step 4: Simplify right side
165,080,902.60x = 40,245,895,133,143,776 - Step 5: Solve for x
x = 40,245,895,133,143,776/165,080,902.60 - Step 6: Final answer
x = 243,794,978.70
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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.