Finding the Fourth Proportional to 66,430,005.30, 99,645,007.95 and 18,560,949.30
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Solution
The fourth proportional to 66,430,005.30, 99,645,007.95 and 18,560,949.30 is: 27,841,423.95
Step by Step Solution
- Step 1: Write the proportion equation
66,430,005.30 : 99,645,007.95 = 18,560,949.30 : x - Step 2: Convert to fraction form
66,430,005.30/99,645,007.95 = 18,560,949.30/x - Step 3: Cross multiply
66,430,005.30x = 99,645,007.95 × 18,560,949.30 - Step 4: Simplify right side
66,430,005.30x = 1,849,505,940,558,047 - Step 5: Solve for x
x = 1,849,505,940,558,047/66,430,005.30 - Step 6: Final answer
x = 27,841,423.95
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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.