Finding the Fourth Proportional to 639,781,414.99, 960,117,618.29 and 225,291,622.29
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Solution
The fourth proportional to 639,781,414.99, 960,117,618.29 and 225,291,622.29 is: 338,094,309.62
Step by Step Solution
- Step 1: Write the proportion equation
639,781,414.99 : 960,117,618.29 = 225,291,622.29 : x - Step 2: Convert to fraction form
639,781,414.99/960,117,618.29 = 225,291,622.29/x - Step 3: Cross multiply
639,781,414.99x = 960,117,618.29 × 225,291,622.29 - Step 4: Simplify right side
639,781,414.99x = 216,306,455,809,038,176 - Step 5: Solve for x
x = 216,306,455,809,038,176/639,781,414.99 - Step 6: Final answer
x = 338,094,309.62
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.