Finding the Fourth Proportional to 31,439,560.96, 43,386,149.68 and 17,688,492.28
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Solution
The fourth proportional to 31,439,560.96, 43,386,149.68 and 17,688,492.28 is: 24,409,869.29
Step by Step Solution
- Step 1: Write the proportion equation
31,439,560.96 : 43,386,149.68 = 17,688,492.28 : x - Step 2: Convert to fraction form
31,439,560.96/43,386,149.68 = 17,688,492.28/x - Step 3: Cross multiply
31,439,560.96x = 43,386,149.68 × 17,688,492.28 - Step 4: Simplify right side
31,439,560.96x = 767,435,573,683,616 - Step 5: Solve for x
x = 767,435,573,683,616/31,439,560.96 - Step 6: Final answer
x = 24,409,869.29
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.