Finding the Fourth Proportional to 66,301,886.43, 91,497,555.05 and 38,048,864.49
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Solution
The fourth proportional to 66,301,886.43, 91,497,555.05 and 38,048,864.49 is: 52,507,979.19
Step by Step Solution
- Step 1: Write the proportion equation
66,301,886.43 : 91,497,555.05 = 38,048,864.49 : x - Step 2: Convert to fraction form
66,301,886.43/91,497,555.05 = 38,048,864.49/x - Step 3: Cross multiply
66,301,886.43x = 91,497,555.05 × 38,048,864.49 - Step 4: Simplify right side
66,301,886.43x = 3,481,378,073,073,521 - Step 5: Solve for x
x = 3,481,378,073,073,521/66,301,886.43 - Step 6: Final answer
x = 52,507,979.19
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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.