Finding the Fourth Proportional to 103,324,420.78, 142,587,708.41 and 56,914,674.68
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Solution
The fourth proportional to 103,324,420.78, 142,587,708.41 and 56,914,674.68 is: 78,542,255.32
Step by Step Solution
- Step 1: Write the proportion equation
103,324,420.78 : 142,587,708.41 = 56,914,674.68 : x - Step 2: Convert to fraction form
103,324,420.78/142,587,708.41 = 56,914,674.68/x - Step 3: Cross multiply
103,324,420.78x = 142,587,708.41 × 56,914,674.68 - Step 4: Simplify right side
103,324,420.78x = 8,115,333,037,521,850 - Step 5: Solve for x
x = 8,115,333,037,521,850/103,324,420.78 - Step 6: Final answer
x = 78,542,255.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.