Finding the Fourth Proportional to 309,638,439.99, 427,204,859.04 and 175,654,302.57
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Solution
The fourth proportional to 309,638,439.99, 427,204,859.04 and 175,654,302.57 is: 242,348,371.12
Step by Step Solution
- Step 1: Write the proportion equation
309,638,439.99 : 427,204,859.04 = 175,654,302.57 : x - Step 2: Convert to fraction form
309,638,439.99/427,204,859.04 = 175,654,302.57/x - Step 3: Cross multiply
309,638,439.99x = 427,204,859.04 × 175,654,302.57 - Step 4: Simplify right side
309,638,439.99x = 75,040,371,569,186,368 - Step 5: Solve for x
x = 75,040,371,569,186,368/309,638,439.99 - Step 6: Final answer
x = 242,348,371.12
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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.