Finding the Fourth Proportional to 112,089,785.80, 168,134,678.70 and 99,335,201.80
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Solution
The fourth proportional to 112,089,785.80, 168,134,678.70 and 99,335,201.80 is: 149,002,802.70
Step by Step Solution
- Step 1: Write the proportion equation
112,089,785.80 : 168,134,678.70 = 99,335,201.80 : x - Step 2: Convert to fraction form
112,089,785.80/168,134,678.70 = 99,335,201.80/x - Step 3: Cross multiply
112,089,785.80x = 168,134,678.70 × 99,335,201.80 - Step 4: Simplify right side
112,089,785.80x = 16,701,692,238,242,660 - Step 5: Solve for x
x = 16,701,692,238,242,660/112,089,785.80 - Step 6: Final answer
x = 149,002,802.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.