Finding the Fourth Proportional to 19,451,506.08, 29,151,177.12 and 15,138,763.20
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Solution
The fourth proportional to 19,451,506.08, 29,151,177.12 and 15,138,763.20 is: 22,687,845.64
Step by Step Solution
- Step 1: Write the proportion equation
19,451,506.08 : 29,151,177.12 = 15,138,763.20 : x - Step 2: Convert to fraction form
19,451,506.08/29,151,177.12 = 15,138,763.20/x - Step 3: Cross multiply
19,451,506.08x = 29,151,177.12 × 15,138,763.20 - Step 4: Simplify right side
19,451,506.08x = 441,312,767,420,938 - Step 5: Solve for x
x = 441,312,767,420,938/19,451,506.08 - Step 6: Final answer
x = 22,687,845.64
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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.