Finding the Fourth Proportional to 22,000,108.80, 32,987,041.20 and 13,486,555.20
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Solution
The fourth proportional to 22,000,108.80, 32,987,041.20 and 13,486,555.20 is: 20,221,788.72
Step by Step Solution
- Step 1: Write the proportion equation
22,000,108.80 : 32,987,041.20 = 13,486,555.20 : x - Step 2: Convert to fraction form
22,000,108.80/32,987,041.20 = 13,486,555.20/x - Step 3: Cross multiply
22,000,108.80x = 32,987,041.20 × 13,486,555.20 - Step 4: Simplify right side
22,000,108.80x = 444,881,552,028,474.19 - Step 5: Solve for x
x = 444,881,552,028,474.19/22,000,108.80 - Step 6: Final answer
x = 20,221,788.72
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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.