Finding the Fourth Proportional to 575,423,999.20, 863,135,998.80 and 345,652,530.40
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Solution
The fourth proportional to 575,423,999.20, 863,135,998.80 and 345,652,530.40 is: 518,478,795.60
Step by Step Solution
- Step 1: Write the proportion equation
575,423,999.20 : 863,135,998.80 = 345,652,530.40 : x - Step 2: Convert to fraction form
575,423,999.20/863,135,998.80 = 345,652,530.40/x - Step 3: Cross multiply
575,423,999.20x = 863,135,998.80 × 345,652,530.40 - Step 4: Simplify right side
575,423,999.20x = 298,345,142,064,551,296 - Step 5: Solve for x
x = 298,345,142,064,551,296/575,423,999.20 - Step 6: Final answer
x = 518,478,795.60
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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.