Finding the Fourth Proportional to 19,928,331.60, 29,892,497.40 and 6,465,159.60
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Solution
The fourth proportional to 19,928,331.60, 29,892,497.40 and 6,465,159.60 is: 9,697,739.40
Step by Step Solution
- Step 1: Write the proportion equation
19,928,331.60 : 29,892,497.40 = 6,465,159.60 : x - Step 2: Convert to fraction form
19,928,331.60/29,892,497.40 = 6,465,159.60/x - Step 3: Cross multiply
19,928,331.60x = 29,892,497.40 × 6,465,159.60 - Step 4: Simplify right side
19,928,331.60x = 193,259,766,533,585.03 - Step 5: Solve for x
x = 193,259,766,533,585.03/19,928,331.60 - Step 6: Final answer
x = 9,697,739.40
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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.