Finding the Fourth Proportional to 14,429,437.91, 19,912,946.65 and 8,234,361.28
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Solution
The fourth proportional to 14,429,437.91, 19,912,946.65 and 8,234,361.28 is: 11,363,602.51
Step by Step Solution
- Step 1: Write the proportion equation
14,429,437.91 : 19,912,946.65 = 8,234,361.28 : x - Step 2: Convert to fraction form
14,429,437.91/19,912,946.65 = 8,234,361.28/x - Step 3: Cross multiply
14,429,437.91x = 19,912,946.65 × 8,234,361.28 - Step 4: Simplify right side
14,429,437.91x = 163,970,396,869,771 - Step 5: Solve for x
x = 163,970,396,869,771/14,429,437.91 - Step 6: Final answer
x = 11,363,602.51
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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.