Finding the Fourth Proportional to 6,615,864.48, 9,130,880.40 and 4,039,038.96
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Solution
The fourth proportional to 6,615,864.48, 9,130,880.40 and 4,039,038.96 is: 5,574,476.59
Step by Step Solution
- Step 1: Write the proportion equation
6,615,864.48 : 9,130,880.40 = 4,039,038.96 : x - Step 2: Convert to fraction form
6,615,864.48/9,130,880.40 = 4,039,038.96/x - Step 3: Cross multiply
6,615,864.48x = 9,130,880.40 × 4,039,038.96 - Step 4: Simplify right side
6,615,864.48x = 36,879,981,674,700.38 - Step 5: Solve for x
x = 36,879,981,674,700.38/6,615,864.48 - Step 6: Final answer
x = 5,574,476.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.