Finding the Fourth Proportional to 6,226,424.90, 9,339,637.35 and 2,187,473.30
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Solution
The fourth proportional to 6,226,424.90, 9,339,637.35 and 2,187,473.30 is: 3,281,209.95
Step by Step Solution
- Step 1: Write the proportion equation
6,226,424.90 : 9,339,637.35 = 2,187,473.30 : x - Step 2: Convert to fraction form
6,226,424.90/9,339,637.35 = 2,187,473.30/x - Step 3: Cross multiply
6,226,424.90x = 9,339,637.35 × 2,187,473.30 - Step 4: Simplify right side
6,226,424.90x = 20,430,207,334,807.75 - Step 5: Solve for x
x = 20,430,207,334,807.75/6,226,424.90 - Step 6: Final answer
x = 3,281,209.95
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Double scale
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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.