Finding the Fourth Proportional to 22,207,219.20, 33,310,828.80 and 13,249,267.20
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Solution
The fourth proportional to 22,207,219.20, 33,310,828.80 and 13,249,267.20 is: 19,873,900.80
Step by Step Solution
- Step 1: Write the proportion equation
22,207,219.20 : 33,310,828.80 = 13,249,267.20 : x - Step 2: Convert to fraction form
22,207,219.20/33,310,828.80 = 13,249,267.20/x - Step 3: Cross multiply
22,207,219.20x = 33,310,828.80 × 13,249,267.20 - Step 4: Simplify right side
22,207,219.20x = 441,344,071,424,655.38 - Step 5: Solve for x
x = 441,344,071,424,655.38/22,207,219.20 - Step 6: Final answer
x = 19,873,900.80
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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.