Finding the Fourth Proportional to 117,936,620.20, 176,904,930.30 and 97,130,705.05
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Solution
The fourth proportional to 117,936,620.20, 176,904,930.30 and 97,130,705.05 is: 145,696,057.58
Step by Step Solution
- Step 1: Write the proportion equation
117,936,620.20 : 176,904,930.30 = 97,130,705.05 : x - Step 2: Convert to fraction form
117,936,620.20/176,904,930.30 = 97,130,705.05/x - Step 3: Cross multiply
117,936,620.20x = 176,904,930.30 × 97,130,705.05 - Step 4: Simplify right side
117,936,620.20x = 17,182,900,606,860,108 - Step 5: Solve for x
x = 17,182,900,606,860,108/117,936,620.20 - Step 6: Final answer
x = 145,696,057.58
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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.