Finding the Fourth Proportional to 42,028,207.20, 63,042,310.80 and 14,765,283.90
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Solution
The fourth proportional to 42,028,207.20, 63,042,310.80 and 14,765,283.90 is: 22,147,925.85
Step by Step Solution
- Step 1: Write the proportion equation
42,028,207.20 : 63,042,310.80 = 14,765,283.90 : x - Step 2: Convert to fraction form
42,028,207.20/63,042,310.80 = 14,765,283.90/x - Step 3: Cross multiply
42,028,207.20x = 63,042,310.80 × 14,765,283.90 - Step 4: Simplify right side
42,028,207.20x = 930,837,616,674,036.12 - Step 5: Solve for x
x = 930,837,616,674,036.12/42,028,207.20 - Step 6: Final answer
x = 22,147,925.85
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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.