Finding the Fourth Proportional to 431,569,578.90, 647,354,368.35 and 158,883,921.30
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Solution
The fourth proportional to 431,569,578.90, 647,354,368.35 and 158,883,921.30 is: 238,325,881.95
Step by Step Solution
- Step 1: Write the proportion equation
431,569,578.90 : 647,354,368.35 = 158,883,921.30 : x - Step 2: Convert to fraction form
431,569,578.90/647,354,368.35 = 158,883,921.30/x - Step 3: Cross multiply
431,569,578.90x = 647,354,368.35 × 158,883,921.30 - Step 4: Simplify right side
431,569,578.90x = 102,854,200,514,132,624 - Step 5: Solve for x
x = 102,854,200,514,132,624/431,569,578.90 - Step 6: Final answer
x = 238,325,881.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.