Finding the Fourth Proportional to 66,434,415.80, 99,651,623.70 and 55,663,878.20
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Solution
The fourth proportional to 66,434,415.80, 99,651,623.70 and 55,663,878.20 is: 83,495,817.30
Step by Step Solution
- Step 1: Write the proportion equation
66,434,415.80 : 99,651,623.70 = 55,663,878.20 : x - Step 2: Convert to fraction form
66,434,415.80/99,651,623.70 = 55,663,878.20/x - Step 3: Cross multiply
66,434,415.80x = 99,651,623.70 × 55,663,878.20 - Step 4: Simplify right side
66,434,415.80x = 5,546,995,844,069,034 - Step 5: Solve for x
x = 5,546,995,844,069,034/66,434,415.80 - Step 6: Final answer
x = 83,495,817.30
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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.