Finding the Fourth Proportional to 111,415,070.18, 153,753,353.34 and 69,623,402.60
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Solution
The fourth proportional to 111,415,070.18, 153,753,353.34 and 69,623,402.60 is: 96,080,643.34
Step by Step Solution
- Step 1: Write the proportion equation
111,415,070.18 : 153,753,353.34 = 69,623,402.60 : x - Step 2: Convert to fraction form
111,415,070.18/153,753,353.34 = 69,623,402.60/x - Step 3: Cross multiply
111,415,070.18x = 153,753,353.34 × 69,623,402.60 - Step 4: Simplify right side
111,415,070.18x = 10,704,831,620,690,874 - Step 5: Solve for x
x = 10,704,831,620,690,874/111,415,070.18 - Step 6: Final answer
x = 96,080,643.34
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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.