Finding the Fourth Proportional to 53,367,812.13, 73,647,643.74 and 28,921,526.13
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Solution
The fourth proportional to 53,367,812.13, 73,647,643.74 and 28,921,526.13 is: 39,911,740.20
Step by Step Solution
- Step 1: Write the proportion equation
53,367,812.13 : 73,647,643.74 = 28,921,526.13 : x - Step 2: Convert to fraction form
53,367,812.13/73,647,643.74 = 28,921,526.13/x - Step 3: Cross multiply
53,367,812.13x = 73,647,643.74 × 28,921,526.13 - Step 4: Simplify right side
53,367,812.13x = 2,130,002,252,839,340.75 - Step 5: Solve for x
x = 2,130,002,252,839,340.75/53,367,812.13 - Step 6: Final answer
x = 39,911,740.20
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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.