Finding the Fourth Proportional to 10,870,472.74, 15,001,617.68 and 6,399,221.05
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Solution
The fourth proportional to 10,870,472.74, 15,001,617.68 and 6,399,221.05 is: 8,831,140.09
Step by Step Solution
- Step 1: Write the proportion equation
10,870,472.74 : 15,001,617.68 = 6,399,221.05 : x - Step 2: Convert to fraction form
10,870,472.74/15,001,617.68 = 6,399,221.05/x - Step 3: Cross multiply
10,870,472.74x = 15,001,617.68 × 6,399,221.05 - Step 4: Simplify right side
10,870,472.74x = 95,998,667,566,900.08 - Step 5: Solve for x
x = 95,998,667,566,900.08/10,870,472.74 - Step 6: Final answer
x = 8,831,140.09
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.