Finding the Fourth Proportional to 19,720,106.10, 29,580,159.15 and 19,436,670.90
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Solution
The fourth proportional to 19,720,106.10, 29,580,159.15 and 19,436,670.90 is: 29,155,006.35
Step by Step Solution
- Step 1: Write the proportion equation
19,720,106.10 : 29,580,159.15 = 19,436,670.90 : x - Step 2: Convert to fraction form
19,720,106.10/29,580,159.15 = 19,436,670.90/x - Step 3: Cross multiply
19,720,106.10x = 29,580,159.15 × 19,436,670.90 - Step 4: Simplify right side
19,720,106.10x = 574,939,818,568,173.62 - Step 5: Solve for x
x = 574,939,818,568,173.62/19,720,106.10 - Step 6: Final answer
x = 29,155,006.35
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1.5x scale
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.