Finding the Fourth Proportional to 75,230,984.68, 103,830,106.82 and 45,879,343.74
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Solution
The fourth proportional to 75,230,984.68, 103,830,106.82 and 45,879,343.74 is: 63,320,414.87
Step by Step Solution
- Step 1: Write the proportion equation
75,230,984.68 : 103,830,106.82 = 45,879,343.74 : x - Step 2: Convert to fraction form
75,230,984.68/103,830,106.82 = 45,879,343.74/x - Step 3: Cross multiply
75,230,984.68x = 103,830,106.82 × 45,879,343.74 - Step 4: Simplify right side
75,230,984.68x = 4,763,657,161,355,698 - Step 5: Solve for x
x = 4,763,657,161,355,698/75,230,984.68 - Step 6: Final answer
x = 63,320,414.87
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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.