Finding the Fourth Proportional to 28,746,175.08, 39,670,323.30 and 15,693,984.12
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Solution
The fourth proportional to 28,746,175.08, 39,670,323.30 and 15,693,984.12 is: 21,658,026.58
Step by Step Solution
- Step 1: Write the proportion equation
28,746,175.08 : 39,670,323.30 = 15,693,984.12 : x - Step 2: Convert to fraction form
28,746,175.08/39,670,323.30 = 15,693,984.12/x - Step 3: Cross multiply
28,746,175.08x = 39,670,323.30 × 15,693,984.12 - Step 4: Simplify right side
28,746,175.08x = 622,585,423,905,465.88 - Step 5: Solve for x
x = 622,585,423,905,465.88/28,746,175.08 - Step 6: Final answer
x = 21,658,026.58
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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.