Finding the Fourth Proportional to 692,018,593.12, 954,982,221.37 and 374,478,615.28
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Solution
The fourth proportional to 692,018,593.12, 954,982,221.37 and 374,478,615.28 is: 516,778,629.12
Step by Step Solution
- Step 1: Write the proportion equation
692,018,593.12 : 954,982,221.37 = 374,478,615.28 : x - Step 2: Convert to fraction form
692,018,593.12/954,982,221.37 = 374,478,615.28/x - Step 3: Cross multiply
692,018,593.12x = 954,982,221.37 × 374,478,615.28 - Step 4: Simplify right side
692,018,593.12x = 357,620,419,875,913,536 - Step 5: Solve for x
x = 357,620,419,875,913,536/692,018,593.12 - Step 6: Final answer
x = 516,778,629.12
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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.