Finding the Fourth Proportional to 389,369,494.14, 537,329,928.11 and 213,157,489.49
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Solution
The fourth proportional to 389,369,494.14, 537,329,928.11 and 213,157,489.49 is: 294,157,349.84
Step by Step Solution
- Step 1: Write the proportion equation
389,369,494.14 : 537,329,928.11 = 213,157,489.49 : x - Step 2: Convert to fraction form
389,369,494.14/537,329,928.11 = 213,157,489.49/x - Step 3: Cross multiply
389,369,494.14x = 537,329,928.11 × 213,157,489.49 - Step 4: Simplify right side
389,369,494.14x = 114,535,898,503,769,792 - Step 5: Solve for x
x = 114,535,898,503,769,792/389,369,494.14 - Step 6: Final answer
x = 294,157,349.84
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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.