Finding the Fourth Proportional to 487,428,623.24, 672,651,450.10 and 275,730,931.08
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Solution
The fourth proportional to 487,428,623.24, 672,651,450.10 and 275,730,931.08 is: 380,508,656.62
Step by Step Solution
- Step 1: Write the proportion equation
487,428,623.24 : 672,651,450.10 = 275,730,931.08 : x - Step 2: Convert to fraction form
487,428,623.24/672,651,450.10 = 275,730,931.08/x - Step 3: Cross multiply
487,428,623.24x = 672,651,450.10 × 275,730,931.08 - Step 4: Simplify right side
487,428,623.24x = 185,470,810,628,385,152 - Step 5: Solve for x
x = 185,470,810,628,385,152/487,428,623.24 - Step 6: Final answer
x = 380,508,656.62
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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.