Finding the Fourth Proportional to 103,408,201.86, 142,703,318.73 and 56,999,452.23
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Solution
The fourth proportional to 103,408,201.86, 142,703,318.73 and 56,999,452.23 is: 78,659,244.17
Step by Step Solution
- Step 1: Write the proportion equation
103,408,201.86 : 142,703,318.73 = 56,999,452.23 : x - Step 2: Convert to fraction form
103,408,201.86/142,703,318.73 = 56,999,452.23/x - Step 3: Cross multiply
103,408,201.86x = 142,703,318.73 × 56,999,452.23 - Step 4: Simplify right side
103,408,201.86x = 8,134,010,999,013,098 - Step 5: Solve for x
x = 8,134,010,999,013,098/103,408,201.86 - Step 6: Final answer
x = 78,659,244.17
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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.