Finding the Fourth Proportional to 148,936,310.58, 205,533,968.06 and 81,962,974.02
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Solution
The fourth proportional to 148,936,310.58, 205,533,968.06 and 81,962,974.02 is: 113,109,927.45
Step by Step Solution
- Step 1: Write the proportion equation
148,936,310.58 : 205,533,968.06 = 81,962,974.02 : x - Step 2: Convert to fraction form
148,936,310.58/205,533,968.06 = 81,962,974.02/x - Step 3: Cross multiply
148,936,310.58x = 205,533,968.06 × 81,962,974.02 - Step 4: Simplify right side
148,936,310.58x = 16,846,175,284,329,290 - Step 5: Solve for x
x = 16,846,175,284,329,290/148,936,310.58 - Step 6: Final answer
x = 113,109,927.45
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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.