Finding the Fourth Proportional to 190,722,979.31, 286,127,114.66 and 69,554,431.31
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Solution
The fourth proportional to 190,722,979.31, 286,127,114.66 and 69,554,431.31 is: 104,347,199.35
Step by Step Solution
- Step 1: Write the proportion equation
190,722,979.31 : 286,127,114.66 = 69,554,431.31 : x - Step 2: Convert to fraction form
190,722,979.31/286,127,114.66 = 69,554,431.31/x - Step 3: Cross multiply
190,722,979.31x = 286,127,114.66 × 69,554,431.31 - Step 4: Simplify right side
190,722,979.31x = 19,901,408,742,199,692 - Step 5: Solve for x
x = 19,901,408,742,199,692/190,722,979.31 - Step 6: Final answer
x = 104,347,199.35
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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.