Finding the Fourth Proportional to 19,866,251.60, 29,807,671.80 and 6,407,205.20
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Solution
The fourth proportional to 19,866,251.60, 29,807,671.80 and 6,407,205.20 is: 9,613,482.89
Step by Step Solution
- Step 1: Write the proportion equation
19,866,251.60 : 29,807,671.80 = 6,407,205.20 : x - Step 2: Convert to fraction form
19,866,251.60/29,807,671.80 = 6,407,205.20/x - Step 3: Cross multiply
19,866,251.60x = 29,807,671.80 × 6,407,205.20 - Step 4: Simplify right side
19,866,251.60x = 190,983,869,756,853.38 - Step 5: Solve for x
x = 190,983,869,756,853.38/19,866,251.60 - Step 6: Final answer
x = 9,613,482.89
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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.