Finding the Fourth Proportional to 472,392,856.20, 708,589,284.30 and 324,439,681.80
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Solution
The fourth proportional to 472,392,856.20, 708,589,284.30 and 324,439,681.80 is: 486,659,522.70
Step by Step Solution
- Step 1: Write the proportion equation
472,392,856.20 : 708,589,284.30 = 324,439,681.80 : x - Step 2: Convert to fraction form
472,392,856.20/708,589,284.30 = 324,439,681.80/x - Step 3: Cross multiply
472,392,856.20x = 708,589,284.30 × 324,439,681.80 - Step 4: Simplify right side
472,392,856.20x = 229,894,481,925,181,728 - Step 5: Solve for x
x = 229,894,481,925,181,728/472,392,856.20 - Step 6: Final answer
x = 486,659,522.70
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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.