Finding the Fourth Proportional to 12,238,335.20, 18,371,645.40 and 6,569,631.20
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Solution
The fourth proportional to 12,238,335.20, 18,371,645.40 and 6,569,631.20 is: 9,862,038.65
Step by Step Solution
- Step 1: Write the proportion equation
12,238,335.20 : 18,371,645.40 = 6,569,631.20 : x - Step 2: Convert to fraction form
12,238,335.20/18,371,645.40 = 6,569,631.20/x - Step 3: Cross multiply
12,238,335.20x = 18,371,645.40 × 6,569,631.20 - Step 4: Simplify right side
12,238,335.20x = 120,694,934,815,176.47 - Step 5: Solve for x
x = 120,694,934,815,176.47/12,238,335.20 - Step 6: Final answer
x = 9,862,038.65
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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.