Finding the Fourth Proportional to 39,016,467.72, 53,842,052.30 and 21,612,448.08
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Solution
The fourth proportional to 39,016,467.72, 53,842,052.30 and 21,612,448.08 is: 29,824,805.47
Step by Step Solution
- Step 1: Write the proportion equation
39,016,467.72 : 53,842,052.30 = 21,612,448.08 : x - Step 2: Convert to fraction form
39,016,467.72/53,842,052.30 = 21,612,448.08/x - Step 3: Cross multiply
39,016,467.72x = 53,842,052.30 × 21,612,448.08 - Step 4: Simplify right side
39,016,467.72x = 1,163,658,559,746,332.25 - Step 5: Solve for x
x = 1,163,658,559,746,332.25/39,016,467.72 - Step 6: Final answer
x = 29,824,805.47
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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.