Finding the Fourth Proportional to 98,765,331.45, 135,985,201.46 and 83,851,156.23
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Solution
The fourth proportional to 98,765,331.45, 135,985,201.46 and 83,851,156.23 is: 115,450,595.92
Step by Step Solution
- Step 1: Write the proportion equation
98,765,331.45 : 135,985,201.46 = 83,851,156.23 : x - Step 2: Convert to fraction form
98,765,331.45/135,985,201.46 = 83,851,156.23/x - Step 3: Cross multiply
98,765,331.45x = 135,985,201.46 × 83,851,156.23 - Step 4: Simplify right side
98,765,331.45x = 11,402,516,372,590,486 - Step 5: Solve for x
x = 11,402,516,372,590,486/98,765,331.45 - Step 6: Final answer
x = 115,450,595.92
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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.