Finding the Fourth Proportional to 450,685,296.47, 621,949,361.92 and 249,745,527.99
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Solution
The fourth proportional to 450,685,296.47, 621,949,361.92 and 249,745,527.99 is: 344,650,852.80
Step by Step Solution
- Step 1: Write the proportion equation
450,685,296.47 : 621,949,361.92 = 249,745,527.99 : x - Step 2: Convert to fraction form
450,685,296.47/621,949,361.92 = 249,745,527.99/x - Step 3: Cross multiply
450,685,296.47x = 621,949,361.92 × 249,745,527.99 - Step 4: Simplify right side
450,685,296.47x = 155,329,071,775,129,632 - Step 5: Solve for x
x = 155,329,071,775,129,632/450,685,296.47 - Step 6: Final answer
x = 344,650,852.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.