Finding the Fourth Proportional to 14,266,765.90, 19,688,248.20 and 8,384,820.49
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Solution
The fourth proportional to 14,266,765.90, 19,688,248.20 and 8,384,820.49 is: 11,571,117.66
Step by Step Solution
- Step 1: Write the proportion equation
14,266,765.90 : 19,688,248.20 = 8,384,820.49 : x - Step 2: Convert to fraction form
14,266,765.90/19,688,248.20 = 8,384,820.49/x - Step 3: Cross multiply
14,266,765.90x = 19,688,248.20 × 8,384,820.49 - Step 4: Simplify right side
14,266,765.90x = 165,082,426,919,565.62 - Step 5: Solve for x
x = 165,082,426,919,565.62/14,266,765.90 - Step 6: Final answer
x = 11,571,117.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.