Finding the Fourth Proportional to 168,235,215.30, 252,352,822.95 and 91,707,711.30
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Solution
The fourth proportional to 168,235,215.30, 252,352,822.95 and 91,707,711.30 is: 137,561,566.95
Step by Step Solution
- Step 1: Write the proportion equation
168,235,215.30 : 252,352,822.95 = 91,707,711.30 : x - Step 2: Convert to fraction form
168,235,215.30/252,352,822.95 = 91,707,711.30/x - Step 3: Cross multiply
168,235,215.30x = 252,352,822.95 × 91,707,711.30 - Step 4: Simplify right side
168,235,215.30x = 23,142,699,832,838,612 - Step 5: Solve for x
x = 23,142,699,832,838,612/168,235,215.30 - Step 6: Final answer
x = 137,561,566.95
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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.