Finding the Fourth Proportional to 4,911,768, 6,778,698.30 and 2,874,579.12
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Solution
The fourth proportional to 4,911,768, 6,778,698.30 and 2,874,579.12 is: 3,967,187.50
Step by Step Solution
- Step 1: Write the proportion equation
4,911,768 : 6,778,698.30 = 2,874,579.12 : x - Step 2: Convert to fraction form
4,911,768/6,778,698.30 = 2,874,579.12/x - Step 3: Cross multiply
4,911,768x = 6,778,698.30 × 2,874,579.12 - Step 4: Simplify right side
4,911,768x = 19,485,904,593,959.50 - Step 5: Solve for x
x = 19,485,904,593,959.50/4,911,768 - Step 6: Final answer
x = 3,967,187.50
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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.