Finding the Fourth Proportional to 399,051,718.40, 550,950,493.26 and 357,163,243.54
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Solution
The fourth proportional to 399,051,718.40, 550,950,493.26 and 357,163,243.54 is: 493,117,197.92
Step by Step Solution
- Step 1: Write the proportion equation
399,051,718.40 : 550,950,493.26 = 357,163,243.54 : x - Step 2: Convert to fraction form
399,051,718.40/550,950,493.26 = 357,163,243.54/x - Step 3: Cross multiply
399,051,718.40x = 550,950,493.26 × 357,163,243.54 - Step 4: Simplify right side
399,051,718.40x = 196,779,265,202,704,512 - Step 5: Solve for x
x = 196,779,265,202,704,512/399,051,718.40 - Step 6: Final answer
x = 493,117,197.92
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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.