Finding the Fourth Proportional to 71,352,000.30, 107,028,000.45 and 49,828,639.80
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Solution
The fourth proportional to 71,352,000.30, 107,028,000.45 and 49,828,639.80 is: 74,742,959.70
Step by Step Solution
- Step 1: Write the proportion equation
71,352,000.30 : 107,028,000.45 = 49,828,639.80 : x - Step 2: Convert to fraction form
71,352,000.30/107,028,000.45 = 49,828,639.80/x - Step 3: Cross multiply
71,352,000.30x = 107,028,000.45 × 49,828,639.80 - Step 4: Simplify right side
71,352,000.30x = 5,333,059,682,937,288 - Step 5: Solve for x
x = 5,333,059,682,937,288/71,352,000.30 - Step 6: Final answer
x = 74,742,959.70
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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.