Finding the Fourth Proportional to 3,915,384.90, 5,403,267.99 and 2,196,542.31
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Solution
The fourth proportional to 3,915,384.90, 5,403,267.99 and 2,196,542.31 is: 3,031,249.05
Step by Step Solution
- Step 1: Write the proportion equation
3,915,384.90 : 5,403,267.99 = 2,196,542.31 : x - Step 2: Convert to fraction form
3,915,384.90/5,403,267.99 = 2,196,542.31/x - Step 3: Cross multiply
3,915,384.90x = 5,403,267.99 × 2,196,542.31 - Step 4: Simplify right side
3,915,384.90x = 11,868,506,752,303.66 - Step 5: Solve for x
x = 11,868,506,752,303.66/3,915,384.90 - Step 6: Final answer
x = 3,031,249.05
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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.