Finding the Fourth Proportional to 19,664,782.40, 29,507,749.08 and 18,949,014.56
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Solution
The fourth proportional to 19,664,782.40, 29,507,749.08 and 18,949,014.56 is: 28,433,712.39
Step by Step Solution
- Step 1: Write the proportion equation
19,664,782.40 : 29,507,749.08 = 18,949,014.56 : x - Step 2: Convert to fraction form
19,664,782.40/29,507,749.08 = 18,949,014.56/x - Step 3: Cross multiply
19,664,782.40x = 29,507,749.08 × 18,949,014.56 - Step 4: Simplify right side
19,664,782.40x = 559,142,766,949,746.56 - Step 5: Solve for x
x = 559,142,766,949,746.56/19,664,782.40 - Step 6: Final answer
x = 28,433,712.39
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.