Finding the Fourth Proportional to 984,516,388.68, 1,358,621,608.77 and 538,492,566.54
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Solution
The fourth proportional to 984,516,388.68, 1,358,621,608.77 and 538,492,566.54 is: 743,113,721.09
Step by Step Solution
- Step 1: Write the proportion equation
984,516,388.68 : 1,358,621,608.77 = 538,492,566.54 : x - Step 2: Convert to fraction form
984,516,388.68/1,358,621,608.77 = 538,492,566.54/x - Step 3: Cross multiply
984,516,388.68x = 1,358,621,608.77 × 538,492,566.54 - Step 4: Simplify right side
984,516,388.68x = 731,607,637,063,261,056 - Step 5: Solve for x
x = 731,607,637,063,261,056/984,516,388.68 - Step 6: Final answer
x = 743,113,721.09
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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.