Finding the Fourth Proportional to 12,953,872.70, 19,430,809.05 and 3,977,258.30
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Solution
The fourth proportional to 12,953,872.70, 19,430,809.05 and 3,977,258.30 is: 5,965,887.45
Step by Step Solution
- Step 1: Write the proportion equation
12,953,872.70 : 19,430,809.05 = 3,977,258.30 : x - Step 2: Convert to fraction form
12,953,872.70/19,430,809.05 = 3,977,258.30/x - Step 3: Cross multiply
12,953,872.70x = 19,430,809.05 × 3,977,258.30 - Step 4: Simplify right side
12,953,872.70x = 77,281,346,569,827.61 - Step 5: Solve for x
x = 77,281,346,569,827.61/12,953,872.70 - Step 6: Final answer
x = 5,965,887.45
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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.