Finding the Fourth Proportional to 787,343,063.09, 1,086,566,415.12 and 452,815,812.41
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Solution
The fourth proportional to 787,343,063.09, 1,086,566,415.12 and 452,815,812.41 is: 624,904,793.17
Step by Step Solution
- Step 1: Write the proportion equation
787,343,063.09 : 1,086,566,415.12 = 452,815,812.41 : x - Step 2: Convert to fraction form
787,343,063.09/1,086,566,415.12 = 452,815,812.41/x - Step 3: Cross multiply
787,343,063.09x = 1,086,566,415.12 × 452,815,812.41 - Step 4: Simplify right side
787,343,063.09x = 492,014,453,994,551,168 - Step 5: Solve for x
x = 492,014,453,994,551,168/787,343,063.09 - Step 6: Final answer
x = 624,904,793.17
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Double scale
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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.