Finding the Fourth Proportional to 19,670,641.74, 29,498,869.17 and 8,311,970.70
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Solution
The fourth proportional to 19,670,641.74, 29,498,869.17 and 8,311,970.70 is: 12,464,958.67
Step by Step Solution
- Step 1: Write the proportion equation
19,670,641.74 : 29,498,869.17 = 8,311,970.70 : x - Step 2: Convert to fraction form
19,670,641.74/29,498,869.17 = 8,311,970.70/x - Step 3: Cross multiply
19,670,641.74x = 29,498,869.17 × 8,311,970.70 - Step 4: Simplify right side
19,670,641.74x = 245,193,736,224,173.34 - Step 5: Solve for x
x = 245,193,736,224,173.34/19,670,641.74 - Step 6: Final answer
x = 12,464,958.67
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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.