Finding the Fourth Proportional to 78,762,129.95, 108,697,763.22 and 43,486,737.68
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Solution
The fourth proportional to 78,762,129.95, 108,697,763.22 and 43,486,737.68 is: 60,015,023.95
Step by Step Solution
- Step 1: Write the proportion equation
78,762,129.95 : 108,697,763.22 = 43,486,737.68 : x - Step 2: Convert to fraction form
78,762,129.95/108,697,763.22 = 43,486,737.68/x - Step 3: Cross multiply
78,762,129.95x = 108,697,763.22 × 43,486,737.68 - Step 4: Simplify right side
78,762,129.95x = 4,726,911,115,550,892 - Step 5: Solve for x
x = 4,726,911,115,550,892/78,762,129.95 - Step 6: Final answer
x = 60,015,023.95
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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.