Finding the Fourth Proportional to 427,561,746.90, 641,342,620.35 and 366,339,743.70
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Solution
The fourth proportional to 427,561,746.90, 641,342,620.35 and 366,339,743.70 is: 549,509,615.55
Step by Step Solution
- Step 1: Write the proportion equation
427,561,746.90 : 641,342,620.35 = 366,339,743.70 : x - Step 2: Convert to fraction form
427,561,746.90/641,342,620.35 = 366,339,743.70/x - Step 3: Cross multiply
427,561,746.90x = 641,342,620.35 × 366,339,743.70 - Step 4: Simplify right side
427,561,746.90x = 234,949,291,162,905,408 - Step 5: Solve for x
x = 234,949,291,162,905,408/427,561,746.90 - Step 6: Final answer
x = 549,509,615.55
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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.