Finding the Fourth Proportional to 4,031,992.55, 5,564,147.36 and 2,221,156.55
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Solution
The fourth proportional to 4,031,992.55, 5,564,147.36 and 2,221,156.55 is: 3,065,194.73
Step by Step Solution
- Step 1: Write the proportion equation
4,031,992.55 : 5,564,147.36 = 2,221,156.55 : x - Step 2: Convert to fraction form
4,031,992.55/5,564,147.36 = 2,221,156.55/x - Step 3: Cross multiply
4,031,992.55x = 5,564,147.36 × 2,221,156.55 - Step 4: Simplify right side
4,031,992.55x = 12,358,842,314,902.69 - Step 5: Solve for x
x = 12,358,842,314,902.69/4,031,992.55 - Step 6: Final answer
x = 3,065,194.73
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1.5x scale
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.