Finding the Fourth Proportional to 138,330,475.24, 190,984,096.76 and 86,196,101.80
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Solution
The fourth proportional to 138,330,475.24, 190,984,096.76 and 86,196,101.80 is: 119,005,480.30
Step by Step Solution
- Step 1: Write the proportion equation
138,330,475.24 : 190,984,096.76 = 86,196,101.80 : x - Step 2: Convert to fraction form
138,330,475.24/190,984,096.76 = 86,196,101.80/x - Step 3: Cross multiply
138,330,475.24x = 190,984,096.76 × 86,196,101.80 - Step 4: Simplify right side
138,330,475.24x = 16,462,084,646,506,008 - Step 5: Solve for x
x = 16,462,084,646,506,008/138,330,475.24 - Step 6: Final answer
x = 119,005,480.30
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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.