Finding the Fourth Proportional to 99,320,668.74, 136,984,875.39 and 64,524,570.42
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Solution
The fourth proportional to 99,320,668.74, 136,984,875.39 and 64,524,570.42 is: 88,993,462.80
Step by Step Solution
- Step 1: Write the proportion equation
99,320,668.74 : 136,984,875.39 = 64,524,570.42 : x - Step 2: Convert to fraction form
99,320,668.74/136,984,875.39 = 64,524,570.42/x - Step 3: Cross multiply
99,320,668.74x = 136,984,875.39 × 64,524,570.42 - Step 4: Simplify right side
99,320,668.74x = 8,838,890,238,576,979 - Step 5: Solve for x
x = 8,838,890,238,576,979/99,320,668.74 - Step 6: Final answer
x = 88,993,462.80
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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.