Finding the Fourth Proportional to 19,720,442.10, 29,580,663.15 and 16,697,133.30
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Solution
The fourth proportional to 19,720,442.10, 29,580,663.15 and 16,697,133.30 is: 25,045,699.95
Step by Step Solution
- Step 1: Write the proportion equation
19,720,442.10 : 29,580,663.15 = 16,697,133.30 : x - Step 2: Convert to fraction form
19,720,442.10/29,580,663.15 = 16,697,133.30/x - Step 3: Cross multiply
19,720,442.10x = 29,580,663.15 × 16,697,133.30 - Step 4: Simplify right side
19,720,442.10x = 493,912,275,717,947.88 - Step 5: Solve for x
x = 493,912,275,717,947.88/19,720,442.10 - Step 6: Final answer
x = 25,045,699.95
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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.