Finding the Fourth Proportional to 103,615,902.40, 145,274,600 and 103,615,902.40
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Solution
The fourth proportional to 103,615,902.40, 145,274,600 and 103,615,902.40 is: 145,274,600
Step by Step Solution
- Step 1: Write the proportion equation
103,615,902.40 : 145,274,600 = 103,615,902.40 : x - Step 2: Convert to fraction form
103,615,902.40/145,274,600 = 103,615,902.40/x - Step 3: Cross multiply
103,615,902.40x = 145,274,600 × 103,615,902.40 - Step 4: Simplify right side
103,615,902.40x = 15,052,758,774,799,040 - Step 5: Solve for x
x = 15,052,758,774,799,040/103,615,902.40 - Step 6: Final answer
x = 145,274,600
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.