Finding the Fourth Proportional to 66,464,618.20, 99,696,927.30 and 43,771,139.80
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Solution
The fourth proportional to 66,464,618.20, 99,696,927.30 and 43,771,139.80 is: 65,656,709.70
Step by Step Solution
- Step 1: Write the proportion equation
66,464,618.20 : 99,696,927.30 = 43,771,139.80 : x - Step 2: Convert to fraction form
66,464,618.20/99,696,927.30 = 43,771,139.80/x - Step 3: Cross multiply
66,464,618.20x = 99,696,927.30 × 43,771,139.80 - Step 4: Simplify right side
66,464,618.20x = 4,363,848,142,478,736 - Step 5: Solve for x
x = 4,363,848,142,478,736/66,464,618.20 - Step 6: Final answer
x = 65,656,709.70
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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.