Finding the Fourth Proportional to 221,011,639.20, 330,879,729.60 and 195,502,471.20
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Solution
The fourth proportional to 221,011,639.20, 330,879,729.60 and 195,502,471.20 is: 292,689,584.32
Step by Step Solution
- Step 1: Write the proportion equation
221,011,639.20 : 330,879,729.60 = 195,502,471.20 : x - Step 2: Convert to fraction form
221,011,639.20/330,879,729.60 = 195,502,471.20/x - Step 3: Cross multiply
221,011,639.20x = 330,879,729.60 × 195,502,471.20 - Step 4: Simplify right side
221,011,639.20x = 64,687,804,806,787,792 - Step 5: Solve for x
x = 64,687,804,806,787,792/221,011,639.20 - Step 6: Final answer
x = 292,689,584.32
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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.