Finding the Fourth Proportional to 528,696,537.21, 729,620,911.68 and 317,037,827.87
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Solution
The fourth proportional to 528,696,537.21, 729,620,911.68 and 317,037,827.87 is: 437,524,009.96
Step by Step Solution
- Step 1: Write the proportion equation
528,696,537.21 : 729,620,911.68 = 317,037,827.87 : x - Step 2: Convert to fraction form
528,696,537.21/729,620,911.68 = 317,037,827.87/x - Step 3: Cross multiply
528,696,537.21x = 729,620,911.68 × 317,037,827.87 - Step 4: Simplify right side
528,696,537.21x = 231,317,429,009,555,840 - Step 5: Solve for x
x = 231,317,429,009,555,840/528,696,537.21 - Step 6: Final answer
x = 437,524,009.96
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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.