Finding the Fourth Proportional to 19,664,799.90, 29,507,775.21 and 18,949,032.06
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Solution
The fourth proportional to 19,664,799.90, 29,507,775.21 and 18,949,032.06 is: 28,433,738.52
Step by Step Solution
- Step 1: Write the proportion equation
19,664,799.90 : 29,507,775.21 = 18,949,032.06 : x - Step 2: Convert to fraction form
19,664,799.90/29,507,775.21 = 18,949,032.06/x - Step 3: Cross multiply
19,664,799.90x = 29,507,775.21 × 18,949,032.06 - Step 4: Simplify right side
19,664,799.90x = 559,143,778,473,563.19 - Step 5: Solve for x
x = 559,143,778,473,563.19/19,664,799.90 - Step 6: Final answer
x = 28,433,738.52
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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.