Finding the Fourth Proportional to 68,205,586.81, 102,306,903.05 and 19,020,127.74
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Solution
The fourth proportional to 68,205,586.81, 102,306,903.05 and 19,020,127.74 is: 28,529,779.68
Step by Step Solution
- Step 1: Write the proportion equation
68,205,586.81 : 102,306,903.05 = 19,020,127.74 : x - Step 2: Convert to fraction form
68,205,586.81/102,306,903.05 = 19,020,127.74/x - Step 3: Cross multiply
68,205,586.81x = 102,306,903.05 × 19,020,127.74 - Step 4: Simplify right side
68,205,586.81x = 1,945,890,364,358,694.75 - Step 5: Solve for x
x = 1,945,890,364,358,694.75/68,205,586.81 - Step 6: Final answer
x = 28,529,779.68
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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.