Finding the Fourth Proportional to 708,795,722.40, 1,063,193,583.60 and 459,124,740.60
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Solution
The fourth proportional to 708,795,722.40, 1,063,193,583.60 and 459,124,740.60 is: 688,687,110.90
Step by Step Solution
- Step 1: Write the proportion equation
708,795,722.40 : 1,063,193,583.60 = 459,124,740.60 : x - Step 2: Convert to fraction form
708,795,722.40/1,063,193,583.60 = 459,124,740.60/x - Step 3: Cross multiply
708,795,722.40x = 1,063,193,583.60 × 459,124,740.60 - Step 4: Simplify right side
708,795,722.40x = 488,138,478,277,934,464 - Step 5: Solve for x
x = 488,138,478,277,934,464/708,795,722.40 - Step 6: Final answer
x = 688,687,110.90
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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.