Finding the Fourth Proportional to 21,553,904.20, 32,330,856.30 and 19,215,563.80
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Solution
The fourth proportional to 21,553,904.20, 32,330,856.30 and 19,215,563.80 is: 28,823,345.70
Step by Step Solution
- Step 1: Write the proportion equation
21,553,904.20 : 32,330,856.30 = 19,215,563.80 : x - Step 2: Convert to fraction form
21,553,904.20/32,330,856.30 = 19,215,563.80/x - Step 3: Cross multiply
21,553,904.20x = 32,330,856.30 × 19,215,563.80 - Step 4: Simplify right side
21,553,904.20x = 621,255,631,941,282 - Step 5: Solve for x
x = 621,255,631,941,282/21,553,904.20 - Step 6: Final answer
x = 28,823,345.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.