Finding the Fourth Proportional to 2,153,973.54, 2,972,990.03 and 1,338,792.88
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Solution
The fourth proportional to 2,153,973.54, 2,972,990.03 and 1,338,792.88 is: 1,847,849.02
Step by Step Solution
- Step 1: Write the proportion equation
2,153,973.54 : 2,972,990.03 = 1,338,792.88 : x - Step 2: Convert to fraction form
2,153,973.54/2,972,990.03 = 1,338,792.88/x - Step 3: Cross multiply
2,153,973.54x = 2,972,990.03 × 1,338,792.88 - Step 4: Simplify right side
2,153,973.54x = 3,980,217,884,474.99 - Step 5: Solve for x
x = 3,980,217,884,474.99/2,153,973.54 - Step 6: Final answer
x = 1,847,849.02
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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.