Finding the Fourth Proportional to 626,465,307.70, 939,697,961.55 and 263,668,251.70
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Solution
The fourth proportional to 626,465,307.70, 939,697,961.55 and 263,668,251.70 is: 395,502,377.55
Step by Step Solution
- Step 1: Write the proportion equation
626,465,307.70 : 939,697,961.55 = 263,668,251.70 : x - Step 2: Convert to fraction form
626,465,307.70/939,697,961.55 = 263,668,251.70/x - Step 3: Cross multiply
626,465,307.70x = 939,697,961.55 × 263,668,251.70 - Step 4: Simplify right side
626,465,307.70x = 247,768,518,647,942,304 - Step 5: Solve for x
x = 247,768,518,647,942,304/626,465,307.70 - Step 6: Final answer
x = 395,502,377.55
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1.5x scale
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.