Finding the Fourth Proportional to 498,443,416.39, 687,891,125.43 and 283,871,133.81
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Solution
The fourth proportional to 498,443,416.39, 687,891,125.43 and 283,871,133.81 is: 391,764,495.82
Step by Step Solution
- Step 1: Write the proportion equation
498,443,416.39 : 687,891,125.43 = 283,871,133.81 : x - Step 2: Convert to fraction form
498,443,416.39/687,891,125.43 = 283,871,133.81/x - Step 3: Cross multiply
498,443,416.39x = 687,891,125.43 × 283,871,133.81 - Step 4: Simplify right side
498,443,416.39x = 195,272,433,714,614,048 - Step 5: Solve for x
x = 195,272,433,714,614,048/498,443,416.39 - Step 6: Final answer
x = 391,764,495.82
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.