Finding the Fourth Proportional to 131,471,201.65, 197,206,802.48 and 80,452,865.65
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Solution
The fourth proportional to 131,471,201.65, 197,206,802.48 and 80,452,865.65 is: 120,679,298.48
Step by Step Solution
- Step 1: Write the proportion equation
131,471,201.65 : 197,206,802.48 = 80,452,865.65 : x - Step 2: Convert to fraction form
131,471,201.65/197,206,802.48 = 80,452,865.65/x - Step 3: Cross multiply
131,471,201.65x = 197,206,802.48 × 80,452,865.65 - Step 4: Simplify right side
131,471,201.65x = 15,865,852,385,189,528 - Step 5: Solve for x
x = 15,865,852,385,189,528/131,471,201.65 - Step 6: Final answer
x = 120,679,298.48
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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.