Finding the Fourth Proportional to 708,589,087.20, 1,062,883,630.80 and 648,323,677.80
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Solution
The fourth proportional to 708,589,087.20, 1,062,883,630.80 and 648,323,677.80 is: 972,485,516.70
Step by Step Solution
- Step 1: Write the proportion equation
708,589,087.20 : 1,062,883,630.80 = 648,323,677.80 : x - Step 2: Convert to fraction form
708,589,087.20/1,062,883,630.80 = 648,323,677.80/x - Step 3: Cross multiply
708,589,087.20x = 1,062,883,630.80 × 648,323,677.80 - Step 4: Simplify right side
708,589,087.20x = 689,092,624,593,673,216 - Step 5: Solve for x
x = 689,092,624,593,673,216/708,589,087.20 - Step 6: Final answer
x = 972,485,516.70
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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.