Finding the Fourth Proportional to 772,301,207.70, 1,158,451,811.55 and 357,777,227.70
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Solution
The fourth proportional to 772,301,207.70, 1,158,451,811.55 and 357,777,227.70 is: 536,665,841.55
Step by Step Solution
- Step 1: Write the proportion equation
772,301,207.70 : 1,158,451,811.55 = 357,777,227.70 : x - Step 2: Convert to fraction form
772,301,207.70/1,158,451,811.55 = 357,777,227.70/x - Step 3: Cross multiply
772,301,207.70x = 1,158,451,811.55 × 357,777,227.70 - Step 4: Simplify right side
772,301,207.70x = 414,467,677,560,401,792 - Step 5: Solve for x
x = 414,467,677,560,401,792/772,301,207.70 - Step 6: Final answer
x = 536,665,841.55
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Similar ratio
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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.