Finding the Fourth Proportional to 13,306,856.70, 19,960,285.05 and 4,787,471.10
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Solution
The fourth proportional to 13,306,856.70, 19,960,285.05 and 4,787,471.10 is: 7,181,206.65
Step by Step Solution
- Step 1: Write the proportion equation
13,306,856.70 : 19,960,285.05 = 4,787,471.10 : x - Step 2: Convert to fraction form
13,306,856.70/19,960,285.05 = 4,787,471.10/x - Step 3: Cross multiply
13,306,856.70x = 19,960,285.05 × 4,787,471.10 - Step 4: Simplify right side
13,306,856.70x = 95,559,287,824,637.05 - Step 5: Solve for x
x = 95,559,287,824,637.05/13,306,856.70 - Step 6: Final answer
x = 7,181,206.65
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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.