Finding the Fourth Proportional to 7,780,464.44, 11,671,257.15 and 2,988,153.71
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Solution
The fourth proportional to 7,780,464.44, 11,671,257.15 and 2,988,153.71 is: 4,482,445.82
Step by Step Solution
- Step 1: Write the proportion equation
7,780,464.44 : 11,671,257.15 = 2,988,153.71 : x - Step 2: Convert to fraction form
7,780,464.44/11,671,257.15 = 2,988,153.71/x - Step 3: Cross multiply
7,780,464.44x = 11,671,257.15 × 2,988,153.71 - Step 4: Simplify right side
7,780,464.44x = 34,875,510,294,780.24 - Step 5: Solve for x
x = 34,875,510,294,780.24/7,780,464.44 - Step 6: Final answer
x = 4,482,445.82
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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.