Finding the Fourth Proportional to 287,535,121.68, 430,863,801.78 and 170,720,445.72
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Solution
The fourth proportional to 287,535,121.68, 430,863,801.78 and 170,720,445.72 is: 255,820,088.53
Step by Step Solution
- Step 1: Write the proportion equation
287,535,121.68 : 430,863,801.78 = 170,720,445.72 : x - Step 2: Convert to fraction form
287,535,121.68/430,863,801.78 = 170,720,445.72/x - Step 3: Cross multiply
287,535,121.68x = 430,863,801.78 × 170,720,445.72 - Step 4: Simplify right side
287,535,121.68x = 73,557,260,284,495,328 - Step 5: Solve for x
x = 73,557,260,284,495,328/287,535,121.68 - Step 6: Final answer
x = 255,820,088.53
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.