Finding the Fourth Proportional to 19,937,068.20, 29,905,602.30 and 4,790,999.70
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Solution
The fourth proportional to 19,937,068.20, 29,905,602.30 and 4,790,999.70 is: 7,186,499.55
Step by Step Solution
- Step 1: Write the proportion equation
19,937,068.20 : 29,905,602.30 = 4,790,999.70 : x - Step 2: Convert to fraction form
19,937,068.20/29,905,602.30 = 4,790,999.70/x - Step 3: Cross multiply
19,937,068.20x = 29,905,602.30 × 4,790,999.70 - Step 4: Simplify right side
19,937,068.20x = 143,277,731,647,619.31 - Step 5: Solve for x
x = 143,277,731,647,619.31/19,937,068.20 - Step 6: Final answer
x = 7,186,499.55
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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.