Finding the Fourth Proportional to 116,486,799.80, 174,730,199.70 and 78,166,671.80
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Solution
The fourth proportional to 116,486,799.80, 174,730,199.70 and 78,166,671.80 is: 117,250,007.70
Step by Step Solution
- Step 1: Write the proportion equation
116,486,799.80 : 174,730,199.70 = 78,166,671.80 : x - Step 2: Convert to fraction form
116,486,799.80/174,730,199.70 = 78,166,671.80/x - Step 3: Cross multiply
116,486,799.80x = 174,730,199.70 × 78,166,671.80 - Step 4: Simplify right side
116,486,799.80x = 13,658,078,173,498,358 - Step 5: Solve for x
x = 13,658,078,173,498,358/116,486,799.80 - Step 6: Final answer
x = 117,250,007.70
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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.