Finding the Fourth Proportional to 66,498,226.04, 91,717,052.19 and 57,221,342.21
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Solution
The fourth proportional to 66,498,226.04, 91,717,052.19 and 57,221,342.21 is: 78,921,997.51
Step by Step Solution
- Step 1: Write the proportion equation
66,498,226.04 : 91,717,052.19 = 57,221,342.21 : x - Step 2: Convert to fraction form
66,498,226.04/91,717,052.19 = 57,221,342.21/x - Step 3: Cross multiply
66,498,226.04x = 91,717,052.19 × 57,221,342.21 - Step 4: Simplify right side
66,498,226.04x = 5,248,172,829,397,834 - Step 5: Solve for x
x = 5,248,172,829,397,834/66,498,226.04 - Step 6: Final answer
x = 78,921,997.51
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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.