Finding the Fourth Proportional to 18,919,152,726.72, 26,096,128,793.67 and 12,134,224,408.99
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Solution
The fourth proportional to 18,919,152,726.72, 26,096,128,793.67 and 12,134,224,408.99 is: 16,737,339,539.58
Step by Step Solution
- Step 1: Write the proportion equation
18,919,152,726.72 : 26,096,128,793.67 = 12,134,224,408.99 : x - Step 2: Convert to fraction form
18,919,152,726.72/26,096,128,793.67 = 12,134,224,408.99/x - Step 3: Cross multiply
18,919,152,726.72x = 26,096,128,793.67 × 12,134,224,408.99 - Step 4: Simplify right side
18,919,152,726.72x = 316,656,282,988,236,636,160 - Step 5: Solve for x
x = 316,656,282,988,236,636,160/18,919,152,726.72 - Step 6: Final answer
x = 16,737,339,539.58
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1.5x scale
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.