Finding the Fourth Proportional to 220,396,502.28, 330,642,583.11 and 67,038,572.91
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Solution
The fourth proportional to 220,396,502.28, 330,642,583.11 and 67,038,572.91 is: 100,572,407.85
Step by Step Solution
- Step 1: Write the proportion equation
220,396,502.28 : 330,642,583.11 = 67,038,572.91 : x - Step 2: Convert to fraction form
220,396,502.28/330,642,583.11 = 67,038,572.91/x - Step 3: Cross multiply
220,396,502.28x = 330,642,583.11 × 67,038,572.91 - Step 4: Simplify right side
220,396,502.28x = 22,165,806,914,970,468 - Step 5: Solve for x
x = 22,165,806,914,970,468/220,396,502.28 - Step 6: Final answer
x = 100,572,407.85
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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.