Finding the Fourth Proportional to 293,939,969.12, 440,919,502.24 and 86,660,997.92
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Solution
The fourth proportional to 293,939,969.12, 440,919,502.24 and 86,660,997.92 is: 129,994,312.04
Step by Step Solution
- Step 1: Write the proportion equation
293,939,969.12 : 440,919,502.24 = 86,660,997.92 : x - Step 2: Convert to fraction form
293,939,969.12/440,919,502.24 = 86,660,997.92/x - Step 3: Cross multiply
293,939,969.12x = 440,919,502.24 × 86,660,997.92 - Step 4: Simplify right side
293,939,969.12x = 38,210,524,066,508,080 - Step 5: Solve for x
x = 38,210,524,066,508,080/293,939,969.12 - Step 6: Final answer
x = 129,994,312.04
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.