Finding the Fourth Proportional to 29,181,268.40, 40,272,235.40 and 16,128,246.32
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Solution
The fourth proportional to 29,181,268.40, 40,272,235.40 and 16,128,246.32 is: 22,258,132.29
Step by Step Solution
- Step 1: Write the proportion equation
29,181,268.40 : 40,272,235.40 = 16,128,246.32 : x - Step 2: Convert to fraction form
29,181,268.40/40,272,235.40 = 16,128,246.32/x - Step 3: Cross multiply
29,181,268.40x = 40,272,235.40 × 16,128,246.32 - Step 4: Simplify right side
29,181,268.40x = 649,520,532,388,223.75 - Step 5: Solve for x
x = 649,520,532,388,223.75/29,181,268.40 - Step 6: Final answer
x = 22,258,132.29
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1.5x scale
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.