Finding the Fourth Proportional to 19,645,981.80, 29,468,972.70 and 16,457,335.80
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Solution
The fourth proportional to 19,645,981.80, 29,468,972.70 and 16,457,335.80 is: 24,686,003.70
Step by Step Solution
- Step 1: Write the proportion equation
19,645,981.80 : 29,468,972.70 = 16,457,335.80 : x - Step 2: Convert to fraction form
19,645,981.80/29,468,972.70 = 16,457,335.80/x - Step 3: Cross multiply
19,645,981.80x = 29,468,972.70 × 16,457,335.80 - Step 4: Simplify right side
19,645,981.80x = 484,980,779,404,932.69 - Step 5: Solve for x
x = 484,980,779,404,932.69/19,645,981.80 - Step 6: Final answer
x = 24,686,003.70
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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.