Finding the Fourth Proportional to 667,340,089.70, 1,001,010,134.55 and 380,685,625.70
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Solution
The fourth proportional to 667,340,089.70, 1,001,010,134.55 and 380,685,625.70 is: 571,028,438.55
Step by Step Solution
- Step 1: Write the proportion equation
667,340,089.70 : 1,001,010,134.55 = 380,685,625.70 : x - Step 2: Convert to fraction form
667,340,089.70/1,001,010,134.55 = 380,685,625.70/x - Step 3: Cross multiply
667,340,089.70x = 1,001,010,134.55 × 380,685,625.70 - Step 4: Simplify right side
667,340,089.70x = 381,070,169,403,207,936 - Step 5: Solve for x
x = 381,070,169,403,207,936/667,340,089.70 - Step 6: Final answer
x = 571,028,438.55
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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.