Finding the Fourth Proportional to 712,971,343.98, 1,068,702,213.56 and 239,819,962.70
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Solution
The fourth proportional to 712,971,343.98, 1,068,702,213.56 and 239,819,962.70 is: 359,476,053.50
Step by Step Solution
- Step 1: Write the proportion equation
712,971,343.98 : 1,068,702,213.56 = 239,819,962.70 : x - Step 2: Convert to fraction form
712,971,343.98/1,068,702,213.56 = 239,819,962.70/x - Step 3: Cross multiply
712,971,343.98x = 1,068,702,213.56 × 239,819,962.70 - Step 4: Simplify right side
712,971,343.98x = 256,296,124,993,366,592 - Step 5: Solve for x
x = 256,296,124,993,366,592/712,971,343.98 - Step 6: Final answer
x = 359,476,053.50
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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.