Finding the Fourth Proportional to 70,838,090.21, 97,781,021.57 and 41,478,859.37
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Solution
The fourth proportional to 70,838,090.21, 97,781,021.57 and 41,478,859.37 is: 57,255,146.64
Step by Step Solution
- Step 1: Write the proportion equation
70,838,090.21 : 97,781,021.57 = 41,478,859.37 : x - Step 2: Convert to fraction form
70,838,090.21/97,781,021.57 = 41,478,859.37/x - Step 3: Cross multiply
70,838,090.21x = 97,781,021.57 × 41,478,859.37 - Step 4: Simplify right side
70,838,090.21x = 4,055,845,242,756,966 - Step 5: Solve for x
x = 4,055,845,242,756,966/70,838,090.21 - Step 6: Final answer
x = 57,255,146.64
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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.